Self-driving Automobile
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A self-driving car, also known as an autonomous car, driver-less car, or robotic car (robo-car), is a
car A car or automobile is a motor vehicle with wheels. Most definitions of ''cars'' say that they run primarily on roads, seat one to eight people, have four wheels, and mainly transport people instead of goods. The year 1886 is regarded as ...
that is capable of traveling without human input.Xie, S.; Hu, J.; Bhowmick, P.; Ding, Z.; Arvin, F.,
Distributed Motion Planning for Safe Autonomous Vehicle Overtaking via Artificial Potential Field
IEEE Transactions on Intelligent Transportation Systems, 2022.
Self-driving cars use sensors to perceive their surroundings, such as optical and
thermographic camera Infrared thermography (IRT), thermal video and/or thermal imaging, is a process where a thermal camera captures and creates an image of an object by using infrared radiation emitted from the object in a process, which are examples of infrared ...
s,
radar Radar is a detection system that uses radio waves to determine the distance (''ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, w ...
,
lidar Lidar (, also LIDAR, or LiDAR; sometimes LADAR) is a method for determining ranges (variable distance) by targeting an object or a surface with a laser and measuring the time for the reflected light to return to the receiver. It can also be ...
,
ultrasound Ultrasound is sound waves with frequency, frequencies higher than the upper audible limit of human hearing range, hearing. Ultrasound is not different from "normal" (audible) sound in its physical properties, except that humans cannot hea ...
/
sonar Sonar (sound navigation and ranging or sonic navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigation, navigate, measure distances (ranging), communicate with or detect o ...
,
GPS The Global Positioning System (GPS), originally Navstar GPS, is a Radionavigation-satellite service, satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of t ...
,
odometry Odometry is the use of data from motion sensors to estimate change in position over time. It is used in robotics by some legged or wheeled robots to estimate their position relative to a starting location. This method is sensitive to errors due t ...
and
inertial measurement unit An inertial measurement unit (IMU) is an electronic device that measures and reports a body's specific force, angular rate, and sometimes the orientation of the body, using a combination of accelerometers, gyroscopes, and sometimes magnetometer ...
s.
Control system A control system manages, commands, directs, or regulates the behavior of other devices or systems using control loops. It can range from a single home heating controller using a thermostat controlling a domestic boiler to large industrial c ...
s interpret
sensory information A sense is a biological system used by an organism for sensation, the process of gathering information about the world through the detection of stimuli. (For example, in the human body, the brain which is part of the central nervous system re ...
to create a three-dimensional model of the surroundings. Based on the model, the car identifies appropriate navigation paths, and strategies for managing traffic controls (stop signs, etc.) and obstacles.Hu, J.; Bhowmick, P.; Jang, I.; Arvin, F.; Lanzon, A.,
A Decentralized Cluster Formation Containment Framework for Multirobot Systems
IEEE Transactions on Robotics, 2021.
Once the technology matures, autonomous vehicles are predicted to
impact Impact may refer to: * Impact (mechanics), a high force or shock (mechanics) over a short time period * Impact, Texas, a town in Taylor County, Texas, US Science and technology * Impact crater, a meteor crater caused by an impact event * Impac ...
the automobile industry, health, welfare, urban planning, traffic, insurance, labor market and other fields. Autonomy in vehicles is often divided into six levels, according to a system developed by
SAE International SAE International, formerly named the Society of Automotive Engineers, is a United States-based, globally active professional association and standards developing organization for engineering professionals in various industries. SAE Internatio ...
(SAE J3016). The SAE levels can be roughly understood as Level 0 – no automation; Level 1 – hands on/shared control; Level 2 – hands off; Level 3 – eyes off; Level 4 – mind off, and Level 5 – steering wheel optional. , vehicles operating at Level 3 and above were an insignificant market factor. In December 2020,
Waymo Waymo LLC, formerly known as the Google self-driving car project, is an American autonomous driving technology company headquartered in Mountain View, California. It is a subsidiary of Alphabet Inc, the parent company of Google. Waymo opera ...
became the first service provider to offer driver-less taxi rides to the general public, in a part of
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. In March 2021,
Honda is a Japanese public multinational conglomerate manufacturer of automobiles, motorcycles, and power equipment, headquartered in Minato, Tokyo, Japan. Honda has been the world's largest motorcycle manufacturer since 1959, reaching a product ...
was the first manufacturer to sell a legally approved Level 3 car. Nuro began autonomous commercial delivery operations in California in 2021. In December 2021,
Mercedes-Benz Mercedes-Benz (), commonly referred to as Mercedes and sometimes as Benz, is a German luxury and commercial vehicle automotive brand established in 1926. Mercedes-Benz AG (a Mercedes-Benz Group subsidiary established in 2019) is headquartere ...
received approval for a Level 3 car. In February 2022, Cruise became the second service provider to offer driver-less taxi rides to the general public, in
San Francisco San Francisco (; Spanish language, Spanish for "Francis of Assisi, Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the List of Ca ...
. , several manufacturers had scaled back plans for self-driving technology, including
Ford Ford commonly refers to: * Ford Motor Company, an automobile manufacturer founded by Henry Ford * Ford (crossing), a shallow crossing on a river Ford may also refer to: Ford Motor Company * Henry Ford, founder of the Ford Motor Company * Ford F ...
and
Volkswagen Volkswagen (),English: , . abbreviated as VW (), is a German Automotive industry, motor vehicle manufacturer headquartered in Wolfsburg, Lower Saxony, Germany. Founded in 1937 by the German Labour Front under the Nazi Party and revived into a ...
.


History

Experiments have been conducted on automated driving systems (ADS) since at least the 1920s; trials began in the 1950s. The first semi-automated car was developed in 1977, by Japan's Tsukuba Mechanical Engineering Laboratory, which required specially marked streets that were interpreted by two cameras on the vehicle and an analog computer. The vehicle reached speeds up to with the support of an elevated rail. A landmark autonomous car appeared in the 1980s, with
Carnegie Mellon University Carnegie Mellon University (CMU) is a private research university in Pittsburgh, Pennsylvania. One of its predecessors was established in 1900 by Andrew Carnegie as the Carnegie Technical Schools; it became the Carnegie Institute of Technology ...
's
Navlab Navlab is a series of autonomous and semi-autonomous vehicles developed by teams from The Robotics Institute at the School of Computer Science, Carnegie Mellon University. Later models were produced under a new department created specifically for ...
and ALV projects funded by the United States'
Defense Advanced Research Projects Agency The Defense Advanced Research Projects Agency (DARPA) is a research and development agency of the United States Department of Defense responsible for the development of emerging technologies for use by the military. Originally known as the Adv ...
(DARPA) starting in 1984 and
Mercedes-Benz Mercedes-Benz (), commonly referred to as Mercedes and sometimes as Benz, is a German luxury and commercial vehicle automotive brand established in 1926. Mercedes-Benz AG (a Mercedes-Benz Group subsidiary established in 2019) is headquartere ...
and
Bundeswehr University Munich image:Eingangsbereich der Universität der Bundeswehr München.jpg, 200px, Entrance to the university Bundeswehr University Munich (german: Universität der Bundeswehr München, UniBw München) is one of two research universities in Germany at fe ...
's EUREKA Prometheus Project in 1987. By 1985, the ALV had demonstrated self-driving speeds on two-lane roads of , with obstacle avoidance added in 1986, and off-road driving in day and night time conditions by 1987. A major milestone was achieved in 1995, with Carnegie Mellon University's Navlab 5 completing the first autonomous coast-to-coast drive of the United States. Of the between
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, Pennsylvania and San Diego, California, were autonomous (98.2%), completed with an average speed of . From the 1960s through the second
DARPA Grand Challenge The DARPA Grand Challenge is a prize competition for American autonomous vehicles, funded by the Defense Advanced Research Projects Agency, the most prominent research organization of the United States Department of Defense. Congress has authorize ...
in 2005, automated vehicle research in the United States was primarily funded by DARPA, the US Army, and the US Navy, yielding incremental advances in speeds, driving competence in more complex conditions, controls, and sensor systems. Companies and research organizations have developed prototypes. The US allocated US$650 million in 1991 for research on the National Automated Highway System, which demonstrated automated driving through a combination of automation embedded in the highway with automated technology in vehicles, and cooperative networking between the vehicles and with the highway infrastructure. The programme concluded with a successful demonstration in 1997 but without clear direction or funding to implement the system on a larger scale. Partly funded by the National Automated Highway System and DARPA, the Carnegie Mellon University Navlab drove across America in 1995, or 98% of it autonomously. Navlab's record achievement stood unmatched for two decades until 2015, when Delphi improved it by piloting an Audi, augmented with Delphi technology, over through 15 states while remaining in self-driving mode 99% of the time. In 2015, the US states of
Nevada Nevada ( ; ) is a U.S. state, state in the Western United States, Western region of the United States. It is bordered by Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. N ...
, Florida, California,
Virginia Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth ar ...
, and
Michigan Michigan () is a state in the Great Lakes region of the upper Midwestern United States. With a population of nearly 10.12 million and an area of nearly , Michigan is the 10th-largest state by population, the 11th-largest by area, and the ...
, together with Washington, DC, allowed the testing of automated cars on public roads. From 2016 to 2018, the
European Commission The European Commission (EC) is the executive of the European Union (EU). It operates as a cabinet government, with 27 members of the Commission (informally known as "Commissioners") headed by a President. It includes an administrative body o ...
funded an innovation strategy development for connected and automated driving through the Coordination Actions CARTRE and SCOUT. Moreover, the Strategic Transport Research and Innovation Agenda (STRIA) Roadmap for Connected and Automated Transport was published in 2019. In November 2017,
Waymo Waymo LLC, formerly known as the Google self-driving car project, is an American autonomous driving technology company headquartered in Mountain View, California. It is a subsidiary of Alphabet Inc, the parent company of Google. Waymo opera ...
announced that it had begun testing driver-less cars without a safety driver in the driver position; however, there was still an employee in the car. An October 2017 report by the
Brookings Institution The Brookings Institution, often stylized as simply Brookings, is an American research group founded in 1916. Located on Think Tank Row in Washington, D.C., the organization conducts research and education in the social sciences, primarily in ec ...
found that the $80 billion had been reported as invested in all facets of self driving technology up to that point, but that it was "reasonable to presume that total global investment in autonomous vehicle technology is significantly more than this". In October 2018, Waymo announced that its test vehicles had traveled in automated mode for over , increasing by about per month. In December 2018, Waymo was the first to commercialize a fully autonomous taxi service in the US, in Phoenix, Arizona. In October 2020, Waymo launched a geo-fenced driver-less ride hailing service in Phoenix. The cars are being monitored in real-time by a team of remote engineers, and there are cases where the remote engineers need to intervene. In March 2019, ahead of the autonomous racing series
Roborace Roborace was a competition with autonomously driving, electrically powered vehicles. Founded in 2015 by Denis Sverdlov, it aimed to be the first global championship for autonomous cars. From 2017 to 2019, the official CEO was 2016–17 Formula ...
, Robocar set the
Guinness World Record ''Guinness World Records'', known from its inception in 1955 until 1999 as ''The Guinness Book of Records'' and in previous United States editions as ''The Guinness Book of World Records'', is a reference book published annually, listing world ...
for being the fastest autonomous car in the world. In pushing the limits of self-driving vehicles, Robocar reached 282.42 km/h (175.49 mph) – an average confirmed by the UK Timing Association at Elvington in Yorkshire, UK. In 2020, a
National Transportation Safety Board The National Transportation Safety Board (NTSB) is an independent U.S. government investigative agency responsible for civil transportation accident investigation. In this role, the NTSB investigates and reports on aviation accidents and incid ...
chairman stated that no self-driving cars ( SAE level 3+) were available for consumers to purchase in the US in 2020: On 5 March 2021,
Honda is a Japanese public multinational conglomerate manufacturer of automobiles, motorcycles, and power equipment, headquartered in Minato, Tokyo, Japan. Honda has been the world's largest motorcycle manufacturer since 1959, reaching a product ...
began leasing in Japan a limited edition of 100 Legend Hybrid EX sedans equipped with the newly approved Level 3 automated driving equipment which had been granted the safety certification by Japanese government to their autonomous "Traffic Jam Pilot" driving technology, and legally allow drivers to take their eyes off the road.


Definitions

There is some inconsistency in the terminology used in the self-driving car industry. Various organizations have proposed to define an accurate and consistent vocabulary. In 2014, such confusion has been documented in SAE J3016 which states that "some vernacular usages associate autonomous specifically with full driving automation (Level 5), while other usages apply it to all levels of driving automation, and some state legislation has defined it to correspond approximately to any ADS utomated driving systemat or above Level 3 (or to any vehicle equipped with such an ADS)."


Terminology and safety considerations

Modern vehicles provide features such as keeping the car within its lane, speed controls, or emergency braking. Those features alone are just considered as driver assistance technologies because they still require a human driver control while fully automated vehicles drive themselves without human driver input. According to Fortune, some newer vehicles' technology names—such as AutonoDrive, PilotAssist, Full-Self Driving or DrivePilot—might confuse the driver, who may believe no driver input is expected when in fact the driver needs to remain involved in the driving task. According to the
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, confusion between those concepts leads to deaths. For this reason, some organizations such as the
AAA AAA, Triple A, or Triple-A is a three-letter initialism or abbreviation which may refer to: Airports * Anaa Airport in French Polynesia (IATA airport code AAA) * Logan County Airport (Illinois) (FAA airport code AAA) Arts, entertainment, and me ...
try to provide standardized naming conventions for features such as ALKS which aim to have capacity to manage the driving task, but which are not yet approved to be an automated vehicles in any countries. The
Association of British Insurers The Association of British Insurers or ABI is a trade association made up of insurance companies in the United Kingdom. History The ABI began in 1985 after several specialised insurance industry trade associations joined to form one trade associa ...
considers the usage of the word ''autonomous'' in marketing for modern cars to be dangerous because car ads make motorists think "autonomous" and "autopilot" mean a vehicle can drive itself when they still rely on the driver to ensure safety. Technology able to drive a car is still in its beta stage. Some car makers suggest or claim vehicles are ''self-driving'' when they are not able to manage some driving situations. Despite being called Full Self-Driving, Tesla stated that its offering should not be considered as a fully autonomous driving system. This makes drivers risk becoming excessively confident, taking
distracted driving Distracted driving is the act of driving while engaging in other activities which distract the driver's attention away from the road. Distractions are shown to compromise the safety of the driver, passengers, pedestrians, and people in other vehic ...
behavior, leading to crashes. While in Great-Britain, a fully self-driving car is only a car registered in a specific list. There have also been proposals to adopt the aviation automation safety knowledge into the discussions of safe implementation of autonomous vehicles, due to the experience that has been gained over the decades by the aviation sector on safety topics. According to the SMMT, "There are two clear states – a vehicle is either assisted with a driver being supported by technology or automated where the technology is effectively and safely replacing the driver."


Autonomous vs. automated

''Autonomous'' means self-governing. Many historical projects related to vehicle automation have been ''automated'' (made automatic) subject to a heavy reliance on artificial aids in their environment, such as magnetic strips. Autonomous control implies satisfactory performance under significant uncertainties in the environment, and the ability to compensate for system failures without external intervention. One approach is to implement
communication networks A telecommunications network is a group of nodes interconnected by telecommunications links that are used to exchange messages between the nodes. The links may use a variety of technologies based on the methodologies of circuit switching, messag ...
both in the immediate vicinity (for
collision avoidance In transportation, collision avoidance is the maintenance of systems and practices designed to prevent vehicles (such as aircraft, motor vehicles, ships, cranes and trains) from colliding with each other. Examples include: * Airborne collision avo ...
) and farther away (for congestion management). Such outside influences in the decision process reduce an individual vehicle's autonomy, while still not requiring human intervention. , most commercial projects focused on automated vehicles that did not communicate with other vehicles or with an enveloping management regime.
Euro NCAP The European New Car Assessment Programme (Euro NCAP) is a European voluntary car safety performance assessment programme (i.e. a New Car Assessment Program) based in Leuven (Belgium) formed in 1996, with the first results released in February ...
defines autonomous in "
Autonomous Emergency Braking A collision avoidance system (CAS), also known as a pre-crash system, forward collision warning system, or collision mitigation system, is an advanced driver-assistance system designed to prevent or reduce the severity of a collision. In its ...
" as: "the system acts independently of the driver to avoid or mitigate the accident", which implies the autonomous system is not the driver. In Europe, the words ''automated'' and ''autonomous'' might be used together. For instance, Regulation (EU) 2019/2144 of the European Parliament and of the Council of 27 November 2019 on type-approval requirements for motor vehicles (...) defines "automated vehicle" and "fully automated vehicle" based on their autonomous capacity:Regulation (EU) 2019/2144 * "automated vehicle" means a motor vehicle designed and constructed to move autonomously for certain periods of time without continuous driver supervision but in respect of which driver intervention is still expected or required; * "fully automated vehicle" means a motor vehicle that has been designed and constructed to move autonomously without any driver supervision; In British English, the word automated alone might have several meaning, such in the sentence: "Thatcham also found that the ''automated'' lane keeping systems could only meet two out of the twelve principles required to guarantee safety, going on to say they cannot, therefore, be classed as automated'' driving', instead it claims the tech should be classed as "assisted driving".": The first occurrence of the "automated" word refers to an Unece automated system, while the second occurrence refers to the British legal definition of an automated vehicle. The British law interprets the meaning of "automated vehicle" based on the interpretation section related to a vehicle "driving itself" and an ''insured vehicle''.


Autonomous versus cooperative

To enable a car to travel without any driver embedded within the vehicle, some companies use a remote driver. According to SAE J3016,


Classifications


Self-driving car

''
PC Magazine ''PC Magazine'' (shortened as ''PCMag'') is an American computer magazine published by Ziff Davis. A print edition was published from 1982 to January 2009. Publication of online editions started in late 1994 and have continued to the present d ...
'' defines a self-driving car as "a computer-controlled car that drives itself". The
Union of Concerned Scientists The Union of Concerned Scientists (UCS) is a nonprofit science advocacy organization based in the United States. The UCS membership includes many private citizens in addition to professional scientists. Anne Kapuscinski, Professor of Environmenta ...
states that self-driving cars are "cars or trucks in which human drivers are never required to take control to safely operate the vehicle. Also known as autonomous or "driver-less" cars, they combine sensors and software to control, navigate, and drive the vehicle." The British Automated and Electric Vehicles Act 2018 law defines a vehicle as "driving itself" if the vehicle "is operating in a mode in which it is not being controlled, and does not need to be monitored, by an individual". Another British definition assumes: "Self-driving vehicles are vehicles that can safely and lawfully drive themselves."


SAE classification

A classification system with six levels – ranging from fully manual to fully automated systems – was published in 2014 by standardization body
SAE International SAE International, formerly named the Society of Automotive Engineers, is a United States-based, globally active professional association and standards developing organization for engineering professionals in various industries. SAE Internatio ...
as J3016, ''Taxonomy and Definitions for Terms Related to On-Road Motor Vehicle Automated Driving Systems''; the details are revised periodically. This classification is based on the amount of driver intervention and attentiveness required, rather than the vehicle's capabilities, although these are loosely related. In the United States in 2013, the
National Highway Traffic Safety Administration The National Highway Traffic Safety Administration (NHTSA ) is an agency of the U.S. federal government, part of the Department of Transportation. It describes its mission as "Save lives, prevent injuries, reduce vehicle-related crashes" rela ...
(NHTSA) had released its original formal classification system. After SAE updated its classification in 2016, called J3016_201609, NHTSA adopted the SAE standard, and SAE classification became widely accepted.


Levels of driving automation

In SAE's automation level definitions, "driving mode" means "a type of driving scenario with characteristic dynamic driving task requirements (e.g., expressway merging, high speed cruising, low speed traffic jam, closed-campus operations, etc.)" * : The automated system issues warnings and may momentarily intervene but has no sustained vehicle control. * ("hands on"): The driver and the automated system share control of the vehicle. Examples are systems where the driver controls steering and the automated system controls engine power to maintain a set speed (
Cruise control Cruise control (also known as speed control, cruise command, autocruise, or tempomat) is a system that automatically controls the speed of a motor vehicle. The system is a servomechanism that takes over the throttle of the car to maintain a ste ...
) or engine and brake power to maintain and vary speed (
Adaptive cruise control Adaptive cruise control (ACC) is an available cruise control Advanced driver-assistance systems, advanced driver-assistance system for road vehicles that automatically adjusts the vehicle speed to maintain a safe distance from vehicles ahead. As ...
or ACC); and Parking Assistance, where steering is automated while speed is under manual control. The driver must be ready to retake full control at any time. Lane Keeping Assistance (LKA) Type II is a further example of Level 1 self-driving.
Automatic emergency braking A collision avoidance system (CAS), also known as a pre-crash system, forward collision warning system, or collision mitigation system, is an advanced driver-assistance system designed to prevent or reduce the severity of a collision. In its ...
which alerts the driver to a crash and permits full braking capacity is also a Level 1 feature, according to ''Autopilot Review'' magazine. * ("hands off"): The automated system takes full control of the vehicle: accelerating, braking, and
steering Steering is a system of components, linkages, and other parts that allows a driver to control the direction of the vehicle. Introduction The most conventional steering arrangement allows a driver to turn the front wheels of a vehicle using ...
. The driver must monitor the driving and be prepared to intervene immediately at any time if the automated system fails to respond properly. The shorthand "hands off" is not meant to be taken literally – contact between hand and wheel is often mandatory during SAE 2 driving, to confirm that the driver is ready to intervene. The eyes of the driver might be monitored by cameras to confirm that the driver is keeping their attention to traffic. Literal hands off driving is considered level 2.5, although there are no half levels officially. A common example is adaptive cruise control which also utilizes lane keeping assist technology so that the driver simply monitors the vehicle, such as "Super-Cruise" in the Cadillac CT6 by General Motors or Ford's F-150 BlueCruise. * ("eyes off"): The driver can safely turn their attention away from the driving tasks, e.g. the driver can text or watch a film. The vehicle will handle situations that call for an immediate response, like emergency braking. The driver must still be prepared to intervene within some limited time, specified by the manufacturer, when called upon by the vehicle to do so. This level of automation can be thought of as a co-driver or co-pilot that's ready to alert the driver in an orderly fashion when swapping their turn to drive. An example would be a Traffic Jam Chauffeur (a car satisfying the international
Automated Lane Keeping Systems Automated lane keeping systems (ALKS), also described as traffic jam chauffeur, is an autonomous driving system that doesn't require driver supervision on motorways. ALKS is an international standard set out in UN-ECE regulation 157 and amounts ...
(ALKS) regulations). * ("mind off"): As level 3, but no driver attention is ever required for safety, e.g. the driver may safely go to sleep or leave the driver's seat. However, self-driving is supported only in limited spatial areas ( geofenced) or under special circumstances. Outside of these areas or circumstances, the vehicle must be able to safely abort the trip, e.g. slow down and park the car, if the driver does not retake control. An example would be a robotic taxi or a robotic delivery service that covers selected locations in an area, at a specific time and quantities.
Automated valet parking Automatic parking is an autonomous car-maneuvering system that moves a vehicle from a traffic lane into a parking spot to perform parallel, perpendicular, or angle parking. The automatic parking system aims to enhance the comfort and safety of d ...
is another example. * ("steering wheel optional"): No human intervention is required at all. An example would be a robotic vehicle that works on all kinds of surfaces, all over the world, all year around, in all weather conditions. In the formal SAE definition below, an important transition is from SAE Level 2 to SAE Level 3 in which the human driver is no longer expected to monitor the environment continuously. At SAE 3, the human driver still has responsibility to intervene when asked to do so by the automated system. At SAE 4 the human driver is always relieved of that responsibility and at SAE 5 the automated system will never need to ask for an intervention.


Criticism of SAE

The SAE Automation Levels have been criticized for their technological focus. It has been argued that the structure of the levels suggests that automation increases linearly and that more automation is better, which may not always be the case. The SAE Levels also do not account for changes that may be required to infrastructure and road user behavior.


Technology


General perspectives

Several classifications have been proposed to deal with the broad range of technological discussions pertaining to self-driving cars. One such proposal is to classify based on the following categories; car navigation, path planning, environment perception and car control. In the 2020s, it became apparent that these technologies are far more complex than initially thought. Even video games have been used as a platform to test autonomous vehicles.


Hybrid navigation

Hybrid navigation is the simultaneous use of more than one
navigation system A navigation system is a computing system that aids in navigation. Navigation systems may be entirely on board the vehicle or vessel that the system is controlling (for example, on the ship's bridge) or located elsewhere, making use of radio or othe ...
for location data determination, needed for
navigation Navigation is a field of study that focuses on the process of monitoring and controlling the movement of a craft or vehicle from one place to another.Bowditch, 2003:799. The field of navigation includes four general categories: land navigation, ...
. Sensing
To reliably and safely operate an autonomous vehicle, usually a mixture of sensors is utilized. Typical sensors include
lidar Lidar (, also LIDAR, or LiDAR; sometimes LADAR) is a method for determining ranges (variable distance) by targeting an object or a surface with a laser and measuring the time for the reflected light to return to the receiver. It can also be ...
(Light Detection and Ranging),
stereo vision Stereopsis () is the component of depth perception retrieved through binocular vision. Stereopsis is not the only contributor to depth perception, but it is a major one. Binocular vision happens because each eye receives a different image becaus ...
,
GPS The Global Positioning System (GPS), originally Navstar GPS, is a Radionavigation-satellite service, satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of t ...
and
IMU IMU may refer to: Science and technology * Inertial measurement unit, a device that measures acceleration and rotation, used for example to maneuver modern vehicles including motorcycles, missiles, air- and spacecraft Businesses and organizations ...
. Modern self-driving cars generally use
Bayesian Thomas Bayes (/beɪz/; c. 1701 – 1761) was an English statistician, philosopher, and Presbyterian minister. Bayesian () refers either to a range of concepts and approaches that relate to statistical methods based on Bayes' theorem, or a followe ...
simultaneous localization and mapping Simultaneous localization and mapping (SLAM) is the computational problem of constructing or updating a map of an unknown environment while simultaneously keeping track of an agent's location within it. While this initially appears to be a chick ...
(SLAM) algorithms, which fuse data from multiple sensors and an off-line map into current location estimates and map updates. Waymo has developed a variant of SLAM with detection and tracking of other moving objects (DATMO), which also handles obstacles such as cars and pedestrians. Simpler systems may use roadside
real-time locating system Real-time locating systems (RTLS), also known as real-time tracking systems, are used to automatically identify and track the location of objects or people in real time, usually within a building or other contained area. Wireless RTLS tags are ...
(RTLS) technologies to aid localization. Maps
Self-driving cars require a new class of
high-definition map A high-definition map (HD map) is a highly accurate map used in autonomous driving, containing details not normally present on traditional maps. Such maps can be precise at a centimetre level. HD maps are often captured using an array of sensors, ...
s (HD maps) that represent the world at up to two orders of magnitude more detail. In May 2018, researchers from the
Massachusetts Institute of Technology The Massachusetts Institute of Technology (MIT) is a private land-grant research university in Cambridge, Massachusetts. Established in 1861, MIT has played a key role in the development of modern technology and science, and is one of the ...
(MIT) announced that they had built an automated car that can navigate unmapped roads. Researchers at their
Computer Science and Artificial Intelligence Laboratory Computer Science and Artificial Intelligence Laboratory (CSAIL) is a research institute at the Massachusetts Institute of Technology (MIT) formed by the 2003 merger of the Laboratory for Computer Science (LCS) and the Artificial Intelligence Lab ...
(CSAIL) have developed a new system, called MapLite, which allows self-driving cars to drive on roads that they have never been on before, without using 3D maps. The system combines the GPS position of the vehicle, a "sparse topological map" such as
OpenStreetMap OpenStreetMap (OSM) is a free, open geographic database updated and maintained by a community of volunteers via open collaboration. Contributors collect data from surveys, trace from aerial imagery and also import from other freely licensed g ...
(i.e. having 2D features of the roads only), and a series of sensors that observe the road conditions. Sensor fusion
Control systems on automated cars may use
sensor fusion Sensor fusion is the process of combining sensor data or data derived from disparate sources such that the resulting information has less uncertainty than would be possible when these sources were used individually. For instance, one could potentia ...
, which is an approach that integrates information from a variety of sensors on the car to produce a more consistent, accurate, and useful view of the environment. Self-driving cars tend to use a combination of cameras, LiDAR sensors, and radar sensors in order to enhance performance and ensure the safety of the passenger and other drivers on the road. An increased consistency in self-driving performance prevents accidents that may occur because of one faulty sensor. Path planning
Path planning Motion planning, also path planning (also known as the navigation problem or the piano mover's problem) is a computational problem to find a sequence of valid configurations that moves the object from the source to destination. The term is used ...
is a
computational problem In theoretical computer science, a computational problem is a problem that may be solved by an algorithm. For example, the problem of factoring :"Given a positive integer ''n'', find a nontrivial prime factor of ''n''." is a computational probl ...
to find a sequence of valid configurations that moves the object from the source to destination. Self-driving cars rely on path planning technology in order to follow the rules of traffic and prevent accidents from occurring. The large scale path of the vehicle can be determined by using a
voronoi diagram In mathematics, a Voronoi diagram is a partition of a plane into regions close to each of a given set of objects. In the simplest case, these objects are just finitely many points in the plane (called seeds, sites, or generators). For each seed th ...
, an
occupancy grid mapping Occupancy Grid Mapping refers to a family of computer algorithms in probabilistic robotics for mobile robots which address the problem of generating maps from noisy and uncertain sensor measurement data, with the assumption that the robot pose is k ...
, or with a driving corridors algorithm. A driving corridors algorithm allows the vehicle to locate and drive within open free space that is bounded by lanes or barriers. While these algorithms work in a simple situation, path planning has not been proven to be effective in a complex scenario. Two techniques used for path planning are graph-based search and variational-based optimization techniques. Graph-based techniques can make harder decisions such as how to pass another vehicle/obstacle. Variational-based optimization techniques require a higher level of planning in setting restrictions on the vehicle's driving corridor to prevent collisions.


Drive by wire

Drive by wire technology in the automotive industry is the use of electrical or electro-mechanical systems for performing vehicle functions traditionally achieved by mechanical linkages.


Driver monitoring system

Driver monitoring system is a vehicle safety system to assess the driver's alertness and warn the driver if needed. It is recognized in developer side that the role of the systems will increase as SAE Level 2 systems become more common-place, and becomes more challenging at Level 3 and above to predict the driver's readiness for handover.


Vehicular communication

Vehicular communications is a growing area of communications between vehicles and including roadside communication infrastructure. Vehicular communication systems use vehicles and roadside units as the communicating
nodes In general, a node is a localized swelling (a "knot") or a point of intersection (a Vertex (graph theory), vertex). Node may refer to: In mathematics *Vertex (graph theory), a vertex in a mathematical graph *Vertex (geometry), a point where two ...
in a peer-to-peer network, providing each other with information. This connectivity enables autonomous vehicles to interact with non-autonomous traffic and pedestrians to increase safety. And autonomous vehicles will need to connect to the cloud to update their software and maps, and feedback information to improve the used maps and software of their manufacturer.


Re-programmable

Autonomous vehicles have software systems that drive the vehicle, meaning that updates through reprogramming or editing the software can enhance the benefits of the owner (e.g. update in better distinguishing blind person vs. non-blind person so that the vehicle will take extra caution when approaching a blind person). A characteristic of this re-programmable part of autonomous vehicles is that the updates need not only to come from the supplier, because through
machine learning Machine learning (ML) is a field of inquiry devoted to understanding and building methods that 'learn', that is, methods that leverage data to improve performance on some set of tasks. It is seen as a part of artificial intelligence. Machine ...
, smart autonomous vehicles can generate certain updates and install them accordingly (e.g. new navigation maps or new intersection computer systems). These reprogrammable characteristics of the digital technology and the possibility of smart machine learning give manufacturers of autonomous vehicles the opportunity to differentiate themselves on software. In March 2021,
UNECE The United Nations Economic Commission for Europe (ECE or UNECE) is one of the five regional commissions under the jurisdiction of the United Nations Economic and Social Council. It was established in order to promote economic cooperation and i ...
regulation on software update and software update management system was published.


Modularity

Autonomous vehicles are more modular since they are made up out of several modules which will be explained hereafter through a Layered Modular Architecture. The Layered Modular Architecture extends the architecture of purely physical vehicles by incorporating four loosely coupled layers of devices, networks, services and contents into Autonomous Vehicles. These loosely coupled layers can interact through certain standardized interfaces. # The first layer of this architecture consists of the device layer. This layer consists of the following two parts: logical capability and physical machinery. The physical machinery refers to the actual vehicle itself (e.g. chassis and carrosserie). When it comes to digital technologies, the physical machinery is accompanied by a logical capability layer in the form of operating systems that helps to guide the vehicles itself and make it autonomous. The logical capability provides control over the vehicle and connects it with the other layers; # On top of the device layer comes the network layer. This layer also consists of two different parts: physical transport and logical transmission. The physical transport layer refers to the radars, sensors and cables of the autonomous vehicles which enable the transmission of digital information. Next to that, the network layer of autonomous vehicles also has a logical transmission which contains communication protocols and network standard to communicate the digital information with other networks and platforms or between layers. This increases the accessibility of the autonomous vehicles and enables the computational power of a network or platform; # The service layer contains the applications and their functionalities that serves the autonomous vehicle (and its owners) as they extract, create, store and consume content with regards to their own driving history, traffic congestion, roads or parking abilities for example.; # The final layer of the model is the contents layer. This layer contains the sounds, images and videos. The autonomous vehicles store, extract and use to act upon and improve their driving and understanding of the environment. The contents layer also provides metadata and directory information about the content's origin, ownership, copyright, encoding methods, content tags, Geo-time stamps, and so on (Yoo et al., 2010).


Homogenization

In order for autonomous vehicles to perceive their surroundings, they have to use different techniques each with their own accompanying digital information (e.g. radar, GPS, motion sensors and computer vision). Homogenization requires that the digital information from these different sources is transmitted and stored in the same form. This means their differences are decoupled, and digital information can be transmitted, stored, and computed in a way that the vehicles and their operating system can better understand and act upon it. In international standardization field,
ISO ISO is the most common abbreviation for the International Organization for Standardization. ISO or Iso may also refer to: Business and finance * Iso (supermarket), a chain of Danish supermarkets incorporated into the SuperBest chain in 2007 * Iso ...
/TC 22 is in charge of in-vehicle transport information and control systems, and ISO/TC 204 is in charge of information, communication and control systems in the field of urban and rural surface transportation. International standards have been actively developed in the domains of AD/ADAS functions, connectivity, human interaction, in-vehicle systems, management/engineering, dynamic map and positioning, privacy and security.


Mathematical safety model

In 2017,
Mobileye Mobileye Global Inc. is a company developing autonomous driving technologies and advanced driver-assistance systems (ADAS) including cameras, computer chips and software. Mobileye was acquired by Intel in 2017 and went public again in 2022. Mobi ...
published a mathematical model for automated vehicle safety which is called "Responsibility-Sensitive Safety (RSS)". It is under standardization at IEEE Standards Association as "IEEE P2846: A Formal Model for Safety Considerations in Automated Vehicle Decision Making". In 2022, a research group of
National Institute of Informatics The is a Japanese research institute located in Chiyoda, Tokyo, Japan. NII was established in April 2000 for the purpose of advancing the study of informatics. This institute also works on creating systems to facilitate the spread of scienti ...
(NII, Japan) expanded RSS and developed "Goal-Aware RSS" to make RSS rules possible to deal with complex scenarios via program logic.


Challenges


Obstacles

The potential benefits from increased vehicle automation described may be limited by foreseeable challenges such as disputes over liability, the time needed to turn over the existing stock of vehicles from non-automated to automated, and thus a long period of humans and autonomous vehicles sharing the roads, resistance by individuals to forfeiting control of their cars, concerns about safety, and the implementation of a legal framework and consistent global government regulations for self-driving cars. In addition, cyberattacks could be a potential threat to autonomous driving in the future. Other obstacles could include de-skilling and lower levels of driver experience for dealing with potentially dangerous situations and anomalies, ethical problems where an automated vehicle's software is forced during an unavoidable crash to choose between multiple harmful courses of action (the
trolley problem The trolley problem is a series of thought experiments in ethics and psychology, involving stylized ethical dilemmas of whether to sacrifice one person to save a larger number. The series usually begins with a scenario in which a runaway tram or ...
), concerns about making large numbers of people currently employed as drivers unemployed, the potential for more intrusive mass surveillance of location, association and travel as a result of police and intelligence agency access to large data sets generated by sensors and pattern-recognition AI, and possibly insufficient understanding of verbal sounds, gestures and non-verbal cues by police, other drivers or pedestrians. Possible technological obstacles for automated cars are: * Artificial intelligence is still not able to function properly in chaotic inner-city environments. * A car's computer could potentially be compromised, as could a communication system between cars. * Susceptibility of the car's sensing and navigation systems to different types of weather (such as snow) or deliberate interference, including jamming and spoofing. * Avoidance of large animals requires recognition and tracking, and
Volvo The Volvo Group ( sv, Volvokoncernen; legally Aktiebolaget Volvo, shortened to AB Volvo, stylized as VOLVO) is a Swedish multinational manufacturing corporation headquartered in Gothenburg. While its core activity is the production, distributio ...
found that software suited to
caribou Reindeer (in North American English, known as caribou if wild and ''reindeer'' if domesticated) are deer in the genus ''Rangifer''. For the last few decades, reindeer were assigned to one species, ''Rangifer tarandus'', with about 10 subspe ...
,
deer Deer or true deer are hoofed ruminant mammals forming the family Cervidae. The two main groups of deer are the Cervinae, including the muntjac, the elk (wapiti), the red deer, and the fallow deer; and the Capreolinae, including the reindeer ...
, and
elk The elk (''Cervus canadensis''), also known as the wapiti, is one of the largest species within the deer family, Cervidae, and one of the largest terrestrial mammals in its native range of North America and Central and East Asia. The common ...
was ineffective with
kangaroo Kangaroos are four marsupials from the family Macropodidae (macropods, meaning "large foot"). In common use the term is used to describe the largest species from this family, the red kangaroo, as well as the antilopine kangaroo, eastern gre ...
s. * Autonomous cars may require
high-definition map A high-definition map (HD map) is a highly accurate map used in autonomous driving, containing details not normally present on traditional maps. Such maps can be precise at a centimetre level. HD maps are often captured using an array of sensors, ...
s to operate properly. Where these maps may be out of date, they would need to be able to fall back to reasonable behaviors. * Competition for the radio spectrum desired for the car's communication. * Field programmability for the systems will require careful evaluation of product development and the component supply chain. * Current road infrastructure may need changes for automated cars to function optimally. * Validation challenge of Automated Driving and need for novel simulation-based approaches comprising digital twins and agent-based traffic simulation.


Concerns

Regulation
In the 2010s, researchers openly worried about the potential of future regulation to delay deployment of automated cars on the road. However, as written in UNECE WP.29 GRVA, international regulation for Level 3 was smoothly established in 2020, and the uncertainty was resolved. , in practice, it is actually very difficult to be approved as Level 3. Deceptive marketing
As Tesla's "Full Self-Driving (FSD)" actually corresponds to Level 2, senators called for investigation to the
Federal Trade Commission The Federal Trade Commission (FTC) is an independent agency of the United States government whose principal mission is the enforcement of civil (non-criminal) antitrust law and the promotion of consumer protection. The FTC shares jurisdiction ov ...
(FTC) about their marketing claims in August 2021. And in December 2021 in Japan, Mercedes-Benz Japan Co., Ltd. was punished by the
Consumer Affairs Agency The is an administrative agency of the Cabinet Office of Japan responsible for consumer protection established on September 1, 2009. Under the law passed on December 10, 2022, the Consumer Affairs Agency now also has jurisdiction over the issue ...
for the descriptions in their handouts that are different from the fact. In July 2016, following a fatal crash by a Tesla car operating in "Autopilot" mode, Mercedes-Benz was also slammed for a misleading commercial advertising E-Class models which had been available with "Drive Pilot". At that time, Mercedes-Benz rejected the claims and stopped its "self-driving car" ad campaign which had been running in the United States. In August 2022, the
California Department of Motor Vehicles The California Department of Motor Vehicles (DMV) is the state agency that registers motor vehicles and boats and issues driver licenses in the U.S. state of California. It regulates new car dealers (through the New Motor Vehicle Board), com ...
(DMV) accused Tesla of deceptive marketing practices. Employment
Companies working on the technology have an increasing recruitment problem in that the available talent pool has not grown with demand. As such, education and training by third-party organizations such as providers of online courses and self-taught community-driven projects such as DIY Robocars and Formula Pi have quickly grown in popularity, while university level extra-curricular programmed such as Formula Student Driver-less have bolstered graduate experience. Industry is steadily increasing freely available information sources, such as code, datasets and glossaries to widen the recruitment pool. National security
In the 2020s, from the importance of the automotive sector to the nation, self-driving car has become a topic of national security. The concerns regarding cybersecurity and data protection are not only important for user protection, but also in the context of national security. The trove of data collected by self-driving cars, paired with cybersecurity vulnerabilities, creates an appealing target for intelligence collection. Self-driving cars are required to be considered in a new way when it comes to espionage risk. It was in July 2018 that a former Apple engineer was arrested by
Federal Bureau of Investigation The Federal Bureau of Investigation (FBI) is the domestic intelligence and security service of the United States and its principal federal law enforcement agency. Operating under the jurisdiction of the United States Department of Justice, ...
(FBI) at
San Jose International Airport Norman Y. Mineta San Jose International Airport , commonly known simply as San Jose International Airport, is a city-owned public airport in San Jose, California, United States. It is named after San Jose native Norman Mineta, former United Sta ...
(SJC) while preparing to board a flight to China and charged with stealing proprietary information related to Apple's self-driving car project. And in January 2019, another Apple employee was charged with stealing self-driving car project secrets. In July 2021,
United States Department of Justice The United States Department of Justice (DOJ), also known as the Justice Department, is a federal executive department of the United States government tasked with the enforcement of federal law and administration of justice in the United State ...
(DOJ) accused Chinese security officials of a hacking attack seeking data on of coordinating a vast hacking campaign to steal sensitive and secret information from government entities including research related to autonomous vehicles. On the China side, they have already prepared "the Provisions on Management of Automotive Data Security (Trial)". It is concerned that
leapfrogging Leapfrogging is a concept used in many domains of the economics and business fields, and was originally developed in the area of industrial organization and economic growth. The main idea behind the concept of leapfrogging is that small and incre ...
ability can be applied to autonomous car technology. Also, emerging
Cellular V2X Vehicular-to-Everything (V2X) communication is important in enabling safe, dependable, and efficient transportation services, which can be implied in both the near- and long-term and can meet the requirements of today and tomorrow. Cellular V2X (C- ...
(Cellular Vehicle-to-Everything) technologies are based on 5G wireless networks. ,
US Congress The United States Congress is the legislature of the federal government of the United States. It is bicameral, composed of a lower body, the House of Representatives, and an upper body, the Senate. It meets in the U.S. Capitol in Washingto ...
is applying fresh scrutiny to the possibility that imported Chinese technology could be a Trojan horse.


Human factors

Moving obstacles
Self-driving cars are already exploring the difficulties of determining the intentions of pedestrians, bicyclists, and animals, and models of behavior must be programmed into driving algorithms. Human road users also have the challenge of determining the intentions of autonomous vehicles, where there is no driver with which to make eye contact or exchange hand signals.
Drive.ai Drive.ai, a subsidiary of Apple Inc., is an American technology company headquartered in Mountain View, California that uses artificial intelligence to make self-driving systems for cars. It has demonstrated a vehicle driving autonomously with a ...
is testing a solution to this problem that involves LED signs mounted on the outside of the vehicle, announcing status such as "going now, don't cross" vs. "waiting for you to cross". Handover and risk compensation
Two human-factor challenges are important for safety. One is the handover from automated driving to manual driving. Human factors research on automated systems has shown that people are slow to detect a problem with automation and slow to understand the problem after it is detected. When automation failures occur, unexpected transitions that require a driver to take over will occur suddenly and the driver may not be ready to take over. The second challenge is known as
risk compensation Risk compensation is a theory which suggests that people typically adjust their behavior in response to perceived levels of risk, becoming more careful where they sense greater risk and less careful if they feel more protected. Although usually ...
: as a system is perceived to be safer, instead of benefiting entirely from all of the increased safety, people engage in riskier behavior and enjoy other benefits. Semi-automated cars have been shown to suffer from this problem, for example with users of
Tesla Autopilot Tesla Autopilot is a suite of advanced driver-assistance system (ADAS) features offered by Tesla that amounts to SAE International Level 2 vehicle automation. Its features are lane centering, traffic-aware cruise control, automatic lane cha ...
ignoring the road and using electronic devices or other activities against the advice of the company that the car is not capable of being completely autonomous. In the near future, pedestrians and bicyclists may travel in the street in a riskier fashion if they believe self-driving cars are capable of avoiding them. Trust
In order for people to buy self-driving cars and vote for the government to allow them on roads, the technology must be trusted as safe. Self-driving elevators were invented in 1900, but the high number of people refusing to use them slowed adoption for several decades until operator strikes increased demand and trust was built with advertising and features like the emergency stop button. There are three types of trust between human and automation. There is dispositional trust, the trust between the driver and the company's product; there is situational trust, or the trust from different scenarios; and there is learned trust where the trust is built between similar events.


Moral issues

Rationale for liability
There are different opinions on who should be held liable in case of a crash, especially with people being hurt. One study suggests requesting the owners of self-driving cars to sign end-user license agreements (EULAs), assigning to them accountability for any accidents. Other studies suggest introducing a tax or insurances that would protect owners and users of automated vehicles of claims made by victims of an accident. Other possible parties that can be held responsible in case of a technical failure include software engineers that programmed the code for the automated operation of the vehicles, and suppliers of components of the AV. Implications from the Trolley Problem
A moral dilemma that a software engineer or car manufacturer might face in programming the operating software of a self-driving vehicle is captured in a variation of the traditional ethical thought experiment, the
trolley problem The trolley problem is a series of thought experiments in ethics and psychology, involving stylized ethical dilemmas of whether to sacrifice one person to save a larger number. The series usually begins with a scenario in which a runaway tram or ...
: An AV is driving with passengers when suddenly a person appears in its way and the car has to commit between one of two options, either to run the person over or to avoid hitting the person by swerving into a wall, killing the passengers. Researchers have suggested, in particular, two ethical theories to be applicable to the behavior of automated vehicles in cases of emergency:
deontology In moral philosophy, deontological ethics or deontology (from Greek: + ) is the normative ethical theory that the morality of an action should be based on whether that action itself is right or wrong under a series of rules and principles, ra ...
and
utilitarianism In ethical philosophy, utilitarianism is a family of normative ethical theories that prescribe actions that maximize happiness and well-being for all affected individuals. Although different varieties of utilitarianism admit different charact ...
. Deontological theory suggests that an automated car needs to follow strict written-out rules that it needs to follow in any situation. Utilitarianism, on the other hand, promotes maximizing the number of people surviving in a crash. Critics suggest that automated vehicles should adapt a mix of multiple theories to be able to respond morally right in the instance of a crash. Recently, some specific ethical frameworks i.e., utilitarianism, deontology, relativism, absolutism (monism), and pluralism, are investigated empirically with respect to the acceptance of self-driving cars in unavoidable accidents. According to research, people overwhelmingly express a preference for autonomous vehicles to be programmed with utilitarian ideas, that is, in a manner that generates the least harm and minimizes driving casualties. While people want others to purchase utilitarian promoting vehicles, they themselves prefer to ride in vehicles that prioritize the lives of people inside the vehicle at all costs. This presents a paradox in which people prefer that others drive utilitarian vehicles designed to maximize the lives preserved in a fatal situation but want to ride in cars that prioritize the safety of passengers at all costs. People disapprove of regulations that promote utilitarian views and would be less willing to purchase a self-driving car that may opt to promote the greatest good at the expense of its passengers. Bonnefon et al. concluded that the regulation of autonomous vehicle ethical prescriptions may be counterproductive to societal safety. This is because, if the government mandates utilitarian ethics and people prefer to ride in self-protective cars, it could prevent the large scale implementation of self-driving cars. Delaying the adoption of autonomous cars vitiates the safety of society as a whole because this technology is projected to save so many lives. Privacy
Privacy-related issues arise mainly from the interconnectivity of automated cars, making it just another mobile device that can gather any information about an individual (see data mining). This information gathering ranges from tracking of the routes taken, voice recording, video recording, preferences in media that is consumed in the car, behavioral patterns, to many more streams of information. The data and communications infrastructure needed to support these vehicles may also be capable of surveillance, especially if coupled to other data sets and advanced analytics.


Applications

Robotaxi
Robotaxi is an application of self-driving car which is supposed to be operated by
taxi A taxi, also known as a taxicab or simply a cab, is a type of vehicle for hire with a driver, used by a single passenger or small group of passengers, often for a non-shared ride. A taxicab conveys passengers between locations of their choice ...
company or
ridesharing company A ridesharing company (also known as a transportation network company, ride-hailing service; the vehicles are called app-taxis or e-taxis) is a company that, via websites and mobile apps, matches passengers with drivers of vehicles for hire tha ...
. Through the massive investments by
Big Tech Big Tech, also known as the Tech Giants, refers to the most dominant companies in the information technology industry, mostly located in the United States. The term also refers to the four or five largest American tech companies, called the Big ...
companies in the mid 2010s, research and development of robotaxi became active in the U.S. Self-driving shuttle and bus
Self-driving shuttle is an application of self-driving car with considerations of multiple passengers supposing the use cases mainly in cities. Through the
European Union The European Union (EU) is a supranational political and economic union of member states that are located primarily in Europe. The union has a total area of and an estimated total population of about 447million. The EU has often been des ...
funded "CityMobil2" project in the mid 2010s, research and development of self-driving shuttle became active in Europe. Continuously, under the funding programme
Horizon 2020 The Framework Programmes for Research and Technological Development, also called Framework Programmes or abbreviated FP1 to FP9, are funding programmes created by the European Union/European Commission to support and foster research in the Europea ...
, "Avenue" project was conducted from 2018 to 2022 in four cities (
Geneva Geneva ( ; french: Genève ) frp, Genèva ; german: link=no, Genf ; it, Ginevra ; rm, Genevra is the List of cities in Switzerland, second-most populous city in Switzerland (after Zürich) and the most populous city of Romandy, the French-speaki ...
,
Lyon Lyon,, ; Occitan: ''Lion'', hist. ''Lionés'' also spelled in English as Lyons, is the third-largest city and second-largest metropolitan area of France. It is located at the confluence of the rivers Rhône and Saône, to the northwest of t ...
,
Copenhagen Copenhagen ( or .; da, København ) is the capital and most populous city of Denmark, with a proper population of around 815.000 in the last quarter of 2022; and some 1.370,000 in the urban area; and the wider Copenhagen metropolitan ar ...
and
Luxembourg Luxembourg ( ; lb, Lëtzebuerg ; french: link=no, Luxembourg; german: link=no, Luxemburg), officially the Grand Duchy of Luxembourg, ; french: link=no, Grand-Duché de Luxembourg ; german: link=no, Großherzogtum Luxemburg is a small lan ...
). Self-driving truck and van
Companies such as
Otto Otto is a masculine German given name and a surname. It originates as an Old High German short form (variants ''Audo'', ''Odo'', ''Udo'') of Germanic names beginning in ''aud-'', an element meaning "wealth, prosperity". The name is recorded fro ...
and Starsky Robotics have focused on autonomous trucks. Automation of trucks is important, not only due to the improved safety aspects of these very heavy vehicles, but also due to the ability of fuel savings through
platoon A platoon is a military unit typically composed of two or more squads, sections, or patrols. Platoon organization varies depending on the country and the branch, but a platoon can be composed of 50 people, although specific platoons may range ...
ing. Autonomous vans are being developed for use by
online grocer An online grocer is either a brick-and-mortar supermarket or grocery store that allows online ordering, or a standalone e-commerce service that includes grocery items. There is usually a delivery charge for this service. Brick-and-mortar supermark ...
s such as
Ocado Ocado Group is a British business based in Hatfield, England, which licenses grocery technology. It owns a 50% share of Ocado.com (the other 50% is owned by UK retailer Marks & Spencer) and licenses its grocery fulfilment technology to global ...
. Autonomous micro-mobility
Research has indicated that goods distribution on the macro (urban distribution) and micro level (
last mile delivery Last mile in supply chain management and transportation planning is the last leg of a journey comprising the movement of people and goods from a transportation hub to a final destination. "Last mile" was adopted from the telecommunications indus ...
) could be made more efficient with the use of autonomous vehicles thanks to the possibility of smaller vehicle sizes. Also, simulation studies in
MIT Media Lab The MIT Media Lab is a research laboratory at the Massachusetts Institute of Technology, growing out of MIT's Architecture Machine Group in the School of Architecture. Its research does not restrict to fixed academic disciplines, but draws from ...
indicate that ultra-lightweight systems can become more helping to remove cars from our cities by applying autonomous driving technologies. In November 2022,
Honda is a Japanese public multinational conglomerate manufacturer of automobiles, motorcycles, and power equipment, headquartered in Minato, Tokyo, Japan. Honda has been the world's largest motorcycle manufacturer since 1959, reaching a product ...
unveiled the "Honda CI Micro-mobility" machines and their core technologies. Honda starts demonstration testing using "Honda CI Micro-mobility" machines, "CiKoMa" and "WaPOCH", at two locations in Jōsō City of
Ibaraki Prefecture is a Prefectures of Japan, prefecture of Japan located in the Kantō region of Honshu. Ibaraki Prefecture has a population of 2,871,199 (1 June 2019) and has a geographic area of . Ibaraki Prefecture borders Fukushima Prefecture to the north, ...
. Autonomous work vehicle
In 2021, Honda and
Black & Veatch Black & Veatch (BV) is the largest engineering firm in the Kansas City metropolitan area. Founded in 1915 in Kansas City, Missouri it is now headquartered in Overland Park, Kansas It is a global engineering, procurement, construction ( EPC) and c ...
have successfully tested their second generation prototype Autonomous Work Vehicle (AWV) at a Black & Veatch construction site in
New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ker ...
. In December 2022, eve autonomy in Japan, a company backed by
Yamaha Motor is a Japanese multinational manufacturer of motorcycles, marine products such as boats and outboard motors, and other motorized products. The company was established in 1955 upon separation from Yamaha Corporation (however, Yamaha Corporation ...
and TIER IV, launched the all-in-one autonomous transportation commercial service "eve auto" with EV work vehicle as the first SAE Level 4 service in Japan at nine sites, including Yamaha Motor's three factories, Prime Polymer's Anesaki Works,
Panasonic formerly between 1935 and 2008 and the first incarnation of between 2008 and 2022, is a major Japanese multinational corporation, multinational Conglomerate (company), conglomerate corporation, headquartered in Kadoma, Osaka, Kadoma, Osaka P ...
's cold chain factory in the Oizumi area,
Fuji Electric , operating under the brand name FE, is a Japanese electrical equipment company, manufacturing pressure transmitters, flowmeters, gas analyzers, controllers, inverters, pumps, generators, ICs, motors, and power equipment. History Fuji Electric ...
's Suzuka factory, Japan Logistic Systems Corp.'s Ageo Center, and ENEOS Corp.'s Negishi refinery.


Testing


Approaches

The testing of vehicles with varying degrees of automation can be carried out either physically, in a closed environment or, where permitted, on public roads (typically requiring a license or permit, or adhering to a specific set of operating principles), or in a virtual environment, i.e. using computer simulations. When driven on public roads, automated vehicles require a person to monitor their proper operation and "take over" when needed. For example, New York has strict requirements for the test driver, such that the vehicle can be corrected at all times by a licensed operator; highlighted by Cardian Cube Company's application and discussions with New York State officials and the NYS DMV.


Disengagements in the 2010s

In California, self-driving car manufacturers are required to submit annual reports to share how often their vehicles disengaged from autonomous mode during tests. It has been believed that we would learn how reliable the vehicles are becoming based on how often they needed "disengagements". In 2017, Waymo reported 63 disengagements over of testing, an average distance of between disengagements, the highest among companies reporting such figures. Waymo also traveled a greater total distance than any of the other companies. Their 2017 rate of 0.18 disengagements per was an improvement over the 0.2 disengagements per in 2016, and 0.8 in 2015. In March 2017, Uber reported an average of just per disengagement. In the final three months of 2017, Cruise (now owned by GM) averaged per disengagement over a total distance of . In July 2018, the first electric driver-less racing car, "Robocar", completed a 1.8-kilometer track, using its navigation system and artificial intelligence.


In the 2020s

Disengagements
, "disengagements" are at the center of the controversy. The problem is that reporting companies have varying definitions of what qualifies as a disengagement, and that definition can change over time. Executives of self-driving car companies have criticized disengagements as a deceptive metric, because it does not take into account the higher degree of difficulty navigating urban streets compared with interstates highway. Compliance
In April 2021, WP.29 GRVA issued the master document on "Test Method for Automated Driving (NATM)". In October 2021, the Europe's comprehensive pilot test of automated driving on public roads, L3Pilot, demonstrated automated systems for cars in
Hamburg (male), (female) en, Hamburger(s), Hamburgian(s) , timezone1 = Central (CET) , utc_offset1 = +1 , timezone1_DST = Central (CEST) , utc_offset1_DST = +2 , postal ...
, Germany, in conjunction with ITS World Congress 2021. SAE Level 3 and 4 functions were tested on ordinary roads. At the end of February 2022, the final results of the L3Pilot project were published. In November 2022, an International Standard ISO 34502 on "Scenario based safety evaluation framework" was published. Collision avoidance
In April 2022, collision avoidance testing was demonstrated by
Nissan , trade name, trading as Nissan Motor Corporation and often shortened to Nissan, is a Japanese multinational corporation, multinational Automotive industry, automobile manufacturer headquartered in Nishi-ku, Yokohama, Japan. The company sells ...
. Also,
Waymo Waymo LLC, formerly known as the Google self-driving car project, is an American autonomous driving technology company headquartered in Mountain View, California. It is a subsidiary of Alphabet Inc, the parent company of Google. Waymo opera ...
published a document about collision avoidance testing in December 2022. Simulation and validation
In September 2022, Biprogy released a software system of "Driving Intelligence Validation Platform (DIVP)" as the achievement of Japanese national project "SIP-adus" led by
Cabinet Office The Cabinet Office is a department of His Majesty's Government responsible for supporting the prime minister and Cabinet. It is composed of various units that support Cabinet committees and which co-ordinate the delivery of government objecti ...
with the same name of its subproject which is interoperable with Open Simulation Interface (OSI) of ASAM. Topics
In November 2021, the
California Department of Motor Vehicles The California Department of Motor Vehicles (DMV) is the state agency that registers motor vehicles and boats and issues driver licenses in the U.S. state of California. It regulates new car dealers (through the New Motor Vehicle Board), com ...
(DMV) notified
Pony.ai Pony.ai is an autonomous vehicle technology company co-located in Silicon Valley, Beijing, and Guangzhou. History The company was founded in December 2016 by James Peng and Tiancheng Lou who were formerly developers for Baidu in Silicon Valle ...
that it was suspending its driverless testing permit following a reported collision in Fremont on 28 October. This incident stands out because the vehicle was in autonomous mode and didn't involve any other vehicle. In May 2022, DMV revoked Pony.ai's permit for failing to monitor the driving records of the safety drivers on its testing permit. In April 2022, it is reported that Cruise's testing vehicle blocked
fire engine A fire engine (also known in some places as a fire truck or fire lorry) is a road vehicle (usually a truck) that functions as a firefighting apparatus. The primary purposes of a fire engine include transporting firefighters and water to an i ...
on emergency call, and sparked questions about an autonomous vehicle's ability to handle unexpected roadway issues. In November 2022,
Toyota is a Japanese multinational automotive manufacturer headquartered in Toyota City, Aichi, Japan. It was founded by Kiichiro Toyoda and incorporated on . Toyota is one of the largest automobile manufacturers in the world, producing about 10 ...
gave a demonstration of one of its GR Yaris test car equipped with AI, which had been trained on the skills and knowledge of professional rally drivers to enhance the safety of self-driving cars. Toyota has been using the learnings from the collaborative activities with
Microsoft Microsoft Corporation is an American multinational technology corporation producing computer software, consumer electronics, personal computers, and related services headquartered at the Microsoft Redmond campus located in Redmond, Washing ...
in FIA
World Rally Championship The World Rally Championship (abbreviated as WRC) is the highest level of global competition in the motorsport discipline of rallying, owned and governed by the FIA. There are separate championships for drivers, co-drivers, manufacturers and t ...
since 2017 season.


Incidents


Tesla Autopilot

, Tesla's
advanced driver-assistance system An advanced driver-assistance system (ADAS) is any of a groups of electronic technologies that assist drivers in driving and parking functions. Through a safe human-machine interface, ADAS increase car and road safety. ADAS uses automated technol ...
(ADAS) Autopilot is classified as a Level 2. On 20 January 2016, the first of five known fatal crashes of a Tesla with Autopilot occurred in China's Hubei province. According to China's 163.com news channel, this marked "China's first accidental death due to Tesla's automatic driving (system)". Initially, Tesla pointed out that the vehicle was so badly damaged from the impact that their recorder was not able to conclusively prove that the car had been on autopilot at the time; however, 163.com pointed out that other factors, such as the car's absolute failure to take any evasive actions prior to the high speed crash, and the driver's otherwise good driving record, seemed to indicate a strong likelihood that the car was on autopilot at the time. A similar fatal crash occurred four months later in Florida. In 2018, in a subsequent civil suit between the father of the driver killed and Tesla, Tesla did not deny that the car had been on autopilot at the time of the accident, and sent evidence to the victim's father documenting that fact. The second known fatal accident involving a vehicle being driven by itself took place in
Williston, Florida Williston is a city in Levy County, Florida, United States. As of the 2010 census it had a population of 2,768. Histoy The city was established before 1885 by J.M. Willis, who named it after himself. Geography Williston is located at (29.386 ...
on 7 May 2016 while a Tesla Model S
electric car An electric car, battery electric car, or all-electric car is an automobile that is propelled by one or more electric motors, using only energy stored in batteries. Compared to internal combustion engine (ICE) vehicles, electric cars are quie ...
was engaged in Autopilot mode. The occupant was killed in a crash with an 18-wheel
tractor-trailer A semi-trailer truck, also known as a semitruck, (or semi, eighteen-wheeler, big rig, tractor-trailer or, by synecdoche, a semitrailer) is the combination of a tractor unit and one or more semi-trailers to carry freight. A semi-trailer a ...
. On 28 June 2016 the US National Highway Traffic Safety Administration (NHTSA) opened a formal investigation into the accident working with the Florida Highway Patrol. According to NHTSA, preliminary reports indicate the crash occurred when the tractor-trailer made a left turn in front of the Tesla at an intersection on a non-controlled access highway, and the car failed to apply the brakes. The car continued to travel after passing under the truck's trailer. NHTSA's preliminary evaluation was opened to examine the design and performance of any automated driving systems in use at the time of the crash, which involved a population of an estimated 25,000 Model S cars. On 8 July 2016, NHTSA requested Tesla Motors provide the agency detailed information about the design, operation and testing of its Autopilot technology. The agency also requested details of all design changes and updates to Autopilot since its introduction, and Tesla's planned updates schedule for the next four months. According to Tesla, "neither Autopilot nor the driver noticed the white side of the tractor-trailer against a brightly lit sky, so the brake was not applied." The car attempted to drive full speed under the trailer, "with the bottom of the trailer impacting the windshield of the Model S". Tesla also claimed that this was Tesla's first known autopilot death in over driven by its customers with Autopilot engaged, however by this statement, Tesla was apparently refusing to acknowledge claims that the January 2016 fatality in Hubei China had also been the result of an autopilot system error. According to Tesla there is a fatality every among all type of vehicles in the US. However, this number also includes fatalities of the crashes, for instance, of motorcycle drivers with pedestrians. In July 2016, the US
National Transportation Safety Board The National Transportation Safety Board (NTSB) is an independent U.S. government investigative agency responsible for civil transportation accident investigation. In this role, the NTSB investigates and reports on aviation accidents and incid ...
(NTSB) opened a formal investigation into the fatal accident while the Autopilot was engaged. The NTSB is an investigative body that has the power to make only policy recommendations. An agency spokesman said "It's worth taking a look and seeing what we can learn from that event, so that as that automation is more widely introduced we can do it in the safest way possible." In January 2017, the NTSB released the report that concluded Tesla was not at fault; the investigation revealed that for Tesla cars, the crash rate dropped by 40 percent after Autopilot was installed. In 2021, NTSB Chair called on Tesla to change the design of its Autopilot to ensure it cannot be misused by drivers, according to a letter sent to the company's CEO.


Waymo

Waymo originated as a self-driving car project within Google. In August 2012, Google announced that their vehicles had completed over 300,000 automated-driving miles (500,000 km) accident-free, typically involving about a dozen cars on the road at any given time, and that they were starting to test with single drivers instead of in pairs. In late-May 2014, Google revealed a new prototype that had no steering wheel, gas pedal, or brake pedal, and was fully automated. , Google had test-driven their fleet in automated mode a total of . In December 2016, Google Corporation announced that its technology would be spun off to a new company called Waymo, with both Google and Waymo becoming subsidiaries of a new parent company called
Alphabet An alphabet is a standardized set of basic written graphemes (called letters) that represent the phonemes of certain spoken languages. Not all writing systems represent language in this way; in a syllabary, each character represents a syll ...
. According to Google's accident reports as of early 2016, their test cars had been involved in 14 collisions, of which other drivers were at fault 13 times, although in 2016 the car's software caused a crash. In June 2015, Brin confirmed that 12 vehicles had suffered collisions as of that date. Eight involved rear-end collisions at a stop sign or traffic light, two in which the vehicle was side-swiped by another driver, one in which another driver rolled through a stop sign, and one where a Google employee was controlling the car manually. In July 2015, three Google employees suffered minor injuries when their vehicle was rear-ended by a car whose driver failed to brake at a traffic light. This was the first time that a collision resulted in injuries. On 14 February 2016 a Google vehicle attempted to avoid sandbags blocking its path. During the maneuver it struck a bus. Google stated, "In this case, we clearly bear some responsibility, because if our car hadn't moved, there wouldn't have been a collision." Google characterized the crash as a misunderstanding and a learning experience. No injuries were reported in the crash.


Uber's Advanced Technologies Group (ATG)

In March 2018,
Elaine Herzberg The death of Elaine Herzberg (August 2, 1968 – March 18, 2018) was the first recorded case of a pedestrian fatality involving a self-driving car, after a collision that occurred late in the evening of March 18, 2018. Herzberg was pushing a bic ...
died after being hit by a self-driving car being tested by Uber's Advanced Technologies Group (ATG) in the US state of Arizona. There was a safety driver in the car. Herzberg was crossing the road about 400 feet from an intersection. This marks the first time an individual is known to have been killed by an autonomous vehicle, and the incident raised questions about regulation of the self-driving car industry. Some experts said a human driver could have avoided the fatal crash. Arizona governor
Doug Ducey Douglas Anthony Ducey (, né Roscoe Jr.; born April 9, 1964) is an American businessman and politician serving as the 23rd governor of Arizona since 2015. A member of the Republican Party, Ducey was previously the CEO of Cold Stone Creamery, a c ...
suspended the company's ability to test and operate its automated cars on public roadways citing an "unquestionable failure" of the expectation that Uber make public safety its top priority. Uber then stopped self-driving tests in California until it was issued a new permit in 2020. In May 2018, the US
National Transportation Safety Board The National Transportation Safety Board (NTSB) is an independent U.S. government investigative agency responsible for civil transportation accident investigation. In this role, the NTSB investigates and reports on aviation accidents and incid ...
(NTSB) issued a preliminary report. The final report 18 months later determined that the immediate cause of the accident was the safety driver's failure to monitor the road because she was distracted by her phone. However, Uber ATG's "inadequate safety culture" contributed to the crash. The report noted from the post-mortem that the victim had "a very high level" of methamphetamine in her body. The board also called on federal regulators to carry out a review before allowing automated test vehicles to operate on public roads. In September 2020, the backup driver, Rafael Vasquez, was charged with negligent homicide, because she did not look at the road for several seconds while her phone was streaming ''
The Voice The Voice may refer to: Fictional entities * The Voice or Presence, a fictional representation of God in DC Comics * The Voice (''Dune''), a fictional ability in the ''Dune'' universe * The Voice, a character in the American TV series ''Cleo ...
'' broadcast by
Hulu Hulu () is an American subscription streaming service majority-owned by The Walt Disney Company, with Comcast's NBCUniversal holding a minority stake. It was launched on October 29, 2007 and it offers a library of films and television serie ...
. She pleaded not guilty and was released to await trial. Uber does not face any criminal charge because in the USA there is no basis for criminal liability for the corporation. The safety driver is assumed to be responsible of the accident, because she was in the driving seat in a capacity to avoid an accident (like in a Level 3). The trial was planned for February 2021.


Navya Arma driving system

On 9 November 2017, a Navya Arma automated self-driving bus with passengers was involved in a crash with a truck. The truck was found to be at fault of the crash, reversing into the stationary automated bus. The automated bus did not take evasive actions or apply
defensive driving Defensive driving describes the practice of anticipating dangerous situations, despite adverse conditions or the mistakes of others when operating a motor vehicle. It can be achieved by adhering to general guidelines, such as keeping a two- or ...
techniques such as flashing its headlights, or sounding the horn. As one passenger commented, "The shuttle didn't have the ability to move back. The shuttle just stayed still."


NIO Navigate on Pilot

On 12 August 2021, a 31-year-old Chinese man was killed after his
NIO ES8 The Nio ES8 is a battery-powered, 6 or 7-seat full-size luxury SUV manufactured by Chinese electric car company Nio. The ES8 was put into production in June 2018 for the Chinese market and on 30 September 2021 it was launched in Norway. The ES8 ...
collided with a construction vehicle. NIO's self-driving feature is still in beta and cannot yet deal with static obstacles. Though the vehicle's manual clearly states that the driver must take over when nearing construction sites, the issue is whether the feature was improperly marketed and unsafe. Lawyers of the deceased's family have also called into question NIO's private access to the vehicle, which they argue may lead to the data ending up forged.


Toyota e-Palette operation

On 26 August 2021, a
Toyota e-Palette is a Japanese multinational automotive manufacturer headquartered in Toyota City, Aichi, Japan. It was founded by Kiichiro Toyoda and incorporated on . Toyota is one of the largest automobile manufacturers in the world, producing about 10 ...
, a mobility vehicle used to support mobility within the Athletes' Village at the Olympic and Paralympic Games Tokyo 2020, collided with a visually impaired pedestrian about to cross a pedestrian crossing. The suspension was made after the accident, and restarted on 31 with improved safety measures.


Public opinion surveys


In the 2010s

In a 2011 online survey of 2,006 US and UK consumers by
Accenture Accenture plc is an Irish-American professional services company based in Dublin, specializing in information technology (IT) services and consulting. A ''Fortune'' Global 500 company, it reported revenues of $61.6 billion in 2022. Accentur ...
, 49% said they would be comfortable using a "driverless car". A 2012 survey of 17,400 vehicle owners by
J.D. Power and Associates J.D. Power is an American consumer research, data, and analytics firm based in Troy, Michigan. The company was founded in 1968 by James David Power III. It conducts surveys of customer satisfaction, product quality, and buyer behavior for the au ...
found 37% initially said they would be interested in purchasing a "fully autonomous car". However, that figure dropped to 20% if told the technology would cost US$3,000 more. In a 2012 survey of about 1,000 German drivers by automotive researcher Puls, 22% of the respondents had a positive attitude towards these cars, 10% were undecided, 44% were skeptical and 24% were hostile. A 2013 survey of 1,500 consumers across 10 countries by
Cisco Systems Cisco Systems, Inc., commonly known as Cisco, is an American-based multinational corporation, multinational digital communications technology conglomerate (company), conglomerate corporation headquartered in San Jose, California. Cisco develo ...
found 57% "stated they would be likely to ride in a car controlled entirely by technology that does not require a human driver", with Brazil, India and China the most willing to trust automated technology. In a 2014 US telephone survey by Insurance.com, over three-quarters of licensed drivers said they would at least consider buying a self-driving car, rising to 86% if car insurance were cheaper. 31.7% said they would not continue to drive once an automated car was available instead. In a February 2015 survey of top auto journalists, 46% predicted that either Tesla or Daimler would be the first to the market with a fully autonomous vehicle, while (at 38%) Daimler was predicted to be the most functional, safe, and in-demand autonomous vehicle. In 2015, a questionnaire survey by Delft University of Technology explored the opinion of 5,000 people from 109 countries on automated driving. Results showed that respondents, on average, found manual driving the most enjoyable mode of driving. 22% of the respondents did not want to spend any money for a fully automated driving system. Respondents were found to be most concerned about software hacking/misuse, and were also concerned about legal issues and safety. Finally, respondents from more developed countries (in terms of lower accident statistics, higher education, and higher income) were less comfortable with their vehicle transmitting data. The survey also gave results on potential consumer opinion on interest of purchasing an automated car, stating that 37% of surveyed current owners were either "definitely" or "probably" interested in purchasing an automated car. In 2016, a survey in Germany examined the opinion of 1,603 people, who were representative in terms of age, gender, and education for the German population, towards partially, highly, and fully automated cars. Results showed that men and women differ in their willingness to use them. Men felt less anxiety and more joy towards automated cars, whereas women showed the exact opposite. The gender difference towards anxiety was especially pronounced between young men and women but decreased with participants' age. In 2016, a
PwC PricewaterhouseCoopers is an international professional services brand of firms, operating as partnerships under the PwC brand. It is the second-largest professional services network in the world and is considered one of the Big Four accounting ...
survey, in the United States, showing the opinion of 1,584 people, highlights that "66 percent of respondents said they think autonomous cars are probably smarter than the average human driver". People are still worried about safety and mostly the fact of having the car hacked. Nevertheless, only 13% of the interviewees see no advantages in this new kind of cars. In 2017, Pew Research Center surveyed 4,135 US adults from 1–15 May and found that many Americans anticipate significant impacts from various automation technologies in the course of their lifetimes—from the widespread adoption of automated vehicles to the replacement of entire job categories with robot workers. In 2019, results from two opinion surveys of 54 and 187 US adults respectively were published. A new standardized questionnaire, the autonomous vehicle acceptance model (AVAM) was developed, including additional description to help respondents better understand the implications of different automation levels. Results showed that users were less accepting of high autonomy levels and displayed significantly lower intention to use highly autonomous vehicles. Additionally, partial autonomy (regardless of level) was perceived as requiring uniformly higher driver engagement (usage of hands, feet and eyes) than full autonomy.


In the 2020s

In 2022, research by safety charity Lloyd's Register Foundation uncovered that only a quarter (27%) of the world's population would feel safe in self-driving cars.


Regulation

Regulation of self-driving cars is an increasingly important issue which includes multiple subtopics. Among them are self-driving car liability, regulations regarding approval and international conventions.


Anticipated launch

Between manually driven vehicles (SAE Level 0) and fully autonomous vehicles (SAE Level 5), there are a variety of vehicle types that can be described to have some degree of
automation Automation describes a wide range of technologies that reduce human intervention in processes, namely by predetermining decision criteria, subprocess relationships, and related actions, as well as embodying those predeterminations in machines ...
. These are collectively known as semi-automated vehicles. As it could be a while before the technology and infrastructure are developed for full automation, it is likely that vehicles will have increasing levels of automation. These semi-automated vehicles could potentially harness many of the advantages of fully automated vehicles, while still keeping the driver in charge of the vehicle.


Anticipated Level 2

Tesla vehicles are equipped with hardware that Tesla claims will allow full self driving in the future. In October 2020 Tesla released a "
beta Beta (, ; uppercase , lowercase , or cursive ; grc, βῆτα, bē̂ta or ell, βήτα, víta) is the second letter of the Greek alphabet. In the system of Greek numerals, it has a value of 2. In Modern Greek, it represents the voiced labiod ...
" version of its "Full Self-Driving" software to a small group of testers in the United States; however, this "Full Self-Driving" corresponds to level 2 autonomy.


Anticipated Level 3

In 2017, BMW had been trying to make 7 Series as an automated car in public urban motorways of the United States, Germany and Israel before commercializing them in 2021. Although it was not realized, BMW is still preparing 7 Series to become the next manufacturer to reach Level 3 in the second half of 2022. In September 2021,
Stellantis Stellantis N.V. is a multinational automotive manufacturing corporation formed in 2021 on the basis of a 50–50 cross-border merger between the Italian-American conglomerate Fiat Chrysler Automobiles (FCA) and the French PSA Group. The comp ...
has presented its findings from a pilot programme testing Level 3 autonomous vehicles on public Italian highways. Stellantis's Highway Chauffeur claims Level 3 capabilities, which was tested on the
Maserati Ghibli Maserati Ghibli is the name of three different cars produced by Italian automobile manufacturer Maserati: the AM115, a V8 grand tourer from 1967 to 1973; the AM336, a V6 twin-turbocharged coupé from 1992 to 1998; and the M157, an executive s ...
and
Fiat 500X The Fiat 500X (Type 334) is a subcompact crossover SUV manufactured and marketed by Stellantis (formerly Fiat Chrysler Automobiles), since its debut at the 2014 Paris Motor Show. Following the 500L, and produced from 2014 (from 2016 model year ...
prototypes. Stellantis is going to roll out Level 3 capability within its cars in 2024. In January 2022,
Polestar Polestar is a Swedish automotive brand established in 1996 by Volvo Cars' partner Flash/Polestar Racing and acquired in 2015 by Volvo, which itself was acquired by Geely in 2010. It is headquartered in Torslanda outside Gothenburg, Sweden with ...
, a
Volvo Cars Volvo Cars ( sv, Volvo personvagnar, styled VOLVO in the company's logo) is a Swedish multinational manufacturer of luxury vehicles headquartered in Torslanda, Gothenburg. The company manufactures SUVs, station wagons, and sedans. The company's ...
' brand, indicated its plan to offer Level 3 autonomous driving system in the Polestar 3 SUV,
Volvo XC90 The Volvo XC90 is a mid-size luxury SUV manufactured and marketed by Volvo Cars since 2002 and now in its second generation. The first generation was introduced at the 2002 North American International Auto Show and used the Volvo P2 platform ...
successor, with technologies from
Luminar Technologies Luminar Technologies Inc. is an American technology company that develops vision-based lidar and machine perception technologies, primarily for self-driving cars. The company's headquarters and main research and development facilities are in ...
,
Nvidia Nvidia CorporationOfficially written as NVIDIA and stylized in its logo as VIDIA with the lowercase "n" the same height as the uppercase "VIDIA"; formerly stylized as VIDIA with a large italicized lowercase "n" on products from the mid 1990s to ...
, and Zenseact. ,
Hyundai Motor Company Hyundai Motor Company, often abbreviated to Hyundai Motors ( ) and commonly known as Hyundai (, ; ), is a South Korean multinational automotive manufacturer headquartered in Seoul, South Korea, and founded in 1967. Currently, the company o ...
is in the stage of enhancing cybersecurity of connected cars to put Level 3 self-driving
Genesis G90 The Genesis G90 is a full-size luxury sedan manufactured by the Korean automaker Genesis, which is the luxury vehicle division of Hyundai Motor Company, since 2015. The G90 is the successor of the Hyundai Equus and was known as the Genesis EQ900 ...
on Korean roads. In December 2022,
Honda is a Japanese public multinational conglomerate manufacturer of automobiles, motorcycles, and power equipment, headquartered in Minato, Tokyo, Japan. Honda has been the world's largest motorcycle manufacturer since 1959, reaching a product ...
announced that it will enhance its Level 3 technology to function at any speed below legal limits on highways by 2029. In early 2023,
Mercedes-Benz Mercedes-Benz (), commonly referred to as Mercedes and sometimes as Benz, is a German luxury and commercial vehicle automotive brand established in 1926. Mercedes-Benz AG (a Mercedes-Benz Group subsidiary established in 2019) is headquartere ...
plans to submit an application for its Level 3 Drive Pilot in California and Nevada for approval by mid-2023.


Anticipated Level 4

In July 2020,
Toyota is a Japanese multinational automotive manufacturer headquartered in Toyota City, Aichi, Japan. It was founded by Kiichiro Toyoda and incorporated on . Toyota is one of the largest automobile manufacturers in the world, producing about 10 ...
started testing with public demonstration rides on
Lexus LS The is a full-size luxury sedan (F-segment in Europe) serving as the flagship model of Lexus, the luxury division of Toyota. For the first four generations, all LS models featured V8 engines and were predominantly rear-wheel-drive. In the fourt ...
(fifth generation) based TRI-P4 with Level 4 capability. In August 2021, Toyota operated potentially Level 4 service using e-Palette around the Tokyo 2020 Olympic Village. In September 2020,
Mercedes-Benz Mercedes-Benz (), commonly referred to as Mercedes and sometimes as Benz, is a German luxury and commercial vehicle automotive brand established in 1926. Mercedes-Benz AG (a Mercedes-Benz Group subsidiary established in 2019) is headquartere ...
introduced world's first commercial Level 4
Automated Valet Parking Automatic parking is an autonomous car-maneuvering system that moves a vehicle from a traffic lane into a parking spot to perform parallel, perpendicular, or angle parking. The automatic parking system aims to enhance the comfort and safety of d ...
(AVP) system named ''Intelligent Park Pilot'' for its new S-Class. The system can be pre-installed but is conditional on future national legal approval. In September 2021,
Honda is a Japanese public multinational conglomerate manufacturer of automobiles, motorcycles, and power equipment, headquartered in Minato, Tokyo, Japan. Honda has been the world's largest motorcycle manufacturer since 1959, reaching a product ...
started testing programme toward launch of Level 4 mobility service business in Japan under collaboration with Cruise and
General Motors The General Motors Company (GM) is an American Multinational corporation, multinational Automotive industry, automotive manufacturing company headquartered in Detroit, Michigan, United States. It is the largest automaker in the United States and ...
, using Cruise AV. In October 2021 at
World Congress on Intelligent Transport Systems The World Congress on Intelligent Transport Systems (commonly known as the ITS World Congress) is an annual conference and trade show to promote ITS technologies. ERTICO (ITS Europe), ITS America, ITS AsiaPacific and ITS Japan are its sponsors. Ea ...
, Honda presented that they are already testing Level 4 technology on modified
Legend A legend is a Folklore genre, genre of folklore that consists of a narrative featuring human actions, believed or perceived, both by teller and listeners, to have taken place in human history. Narratives in this genre may demonstrate human valu ...
Hybrid EX. At the end of the month, Honda explained that they are conducting verification project on Level 4 technology on a test course in
Tochigi prefecture is a Prefectures of Japan, prefecture of Japan located in the Kantō region of Honshu. Tochigi Prefecture has a population of 1,943,886 (1 June 2019) and has a geographic area of 6,408 Square kilometre, km2 (2,474 Square mile, sq mi). Tochigi ...
. Honda plans to test on public roads in early 2022. In February 2022, General Motors and Cruise have petitioned
NHTSA The National Highway Traffic Safety Administration (NHTSA ) is an agency of the U.S. federal government, part of the Department of Transportation. It describes its mission as "Save lives, prevent injuries, reduce vehicle-related crashes" relat ...
for permission to build and deploy a self-driving vehicle, the Cruise Origin, which is without human controls like steering wheels or brake pedals. The car was developed with GM and Cruise investor Honda, and its production is expected to begin in late 2022 in Detroit at GM's Factory Zero. , the petition is pending. In April 2022, Honda unveiled its Level 4 mobility service partners to roll out in central Tokyo in the mid-2020s using the Cruse Origin. By September 2022, Japan version prototype of Cruise Origin for Tokyo was completed and started testing.


See also

* History of self-driving cars *
Self-driving car liability Increases in the use of autonomous car technologies (e.g., advanced driver-assistance systems) are causing incremental shifts in the responsibility of driving, with the primary motivation of reducing the frequency of traffic collisions. Liability ...
*
Self-driving truck A self-driving truck, also known as an autonomous truck, or robo-truck is an application of self-driving car designed to transport cargo without requiring no human driver. Many companies are testing self-driving semi trucks. In September 2022, ' ...
*
Automotive navigation system An automotive navigation system is part of the automobile controls or a third party add-on used to find direction in an automobile. It typically uses a satellite navigation device to get its position data which is then correlated to a position on ...
*
Advanced driver-assistance system An advanced driver-assistance system (ADAS) is any of a groups of electronic technologies that assist drivers in driving and parking functions. Through a safe human-machine interface, ADAS increase car and road safety. ADAS uses automated technol ...
*
Computer vision Computer vision is an interdisciplinary scientific field that deals with how computers can gain high-level understanding from digital images or videos. From the perspective of engineering, it seeks to understand and automate tasks that the hum ...
*
Connected car A connected car is a car that can communicate bidirectionally with other systems outside of the car (LAN). This allows the car to share internet access, and hence data, with other devices both inside and outside the vehicle. For safety-critical ap ...
*
DARPA Grand Challenge The DARPA Grand Challenge is a prize competition for American autonomous vehicles, funded by the Defense Advanced Research Projects Agency, the most prominent research organization of the United States Department of Defense. Congress has authorize ...
:
2004 2004 was designated as an International Year of Rice by the United Nations, and the International Year to Commemorate the Struggle Against Slavery and its Abolition (by UNESCO). Events January * January 3 – Flash Airlines Flight 6 ...
,
2005 File:2005 Events Collage V2.png, From top left, clockwise: Hurricane Katrina in the Gulf of Mexico; the Funeral of Pope John Paul II is held in Vatican City; "Me at the zoo", the first video ever to be uploaded to YouTube; Eris was discovered in ...
,
2007 File:2007 Events Collage.png, From top left, clockwise: Steve Jobs unveils Apple's first iPhone; TAM Airlines Flight 3054 overruns a runway and crashes into a gas station, killing almost 200 people; Former Pakistani Prime Minister of Pakistan, Pr ...
*
DARPA Robotics Challenge The DARPA Robotics Challenge (DRC) was a prize competition funded by the US Defense Advanced Research Projects Agency. Held from 2012 to 2015, it aimed to develop semi-autonomous ground robots that could do "complex tasks in dangerous, degraded, ...
(2012) *
Dutch Automated Vehicle Initiative The Dutch Automated Vehicle Initiative (DAVI) is a research and demonstration initiative developing automated vehicles for use on public roads. The project is special in that, besides simply making driverless cars, it also focuses on having th ...
*
Death by GPS Death by GPS refers to the death of people attributable, in part, to following GPS directions or GPS maps. Death by GPS has been noted in several deaths in Death Valley, California, a lost hiker at Joshua Tree National Park in southeastern Califo ...
*
Driverless tractor A driverless tractor is an autonomous farm vehicle that delivers a high tractive effort (or torque) at slow speeds for the purposes of tillage and other agricultural tasks. It is considered driverless because it operates without the presence of a ...
*
Hybrid navigation Hybrid navigation is the simultaneous use of more than one navigation system for location data determination, needed for navigation. By using multiple systems at once, the accuracy as a whole is improved. It also allows for a more reliable navigati ...
* Intelligent transportation system * List of self-driving system suppliers *
Machine vision Machine vision (MV) is the technology and methods used to provide imaging-based automatic inspection and analysis for such applications as automatic inspection, process control, and robot guidance, usually in industry. Machine vision refers to m ...
*
Mobility as a service Mobility as a service (MaaS) is a type of service that, through a joint digital channel, enables users to plan, book, and pay for multiple types of mobility services. The concept describes a shift away from personally-owned modes of transportation ...
*
Personal rapid transit Personal rapid transit (PRT), also referred to as podcars or guided/railed taxis, is a public transport mode featuring small low-capacity automated vehicles operating on a network of specially built guideways. PRT is a type of automated guideway ...
*
Platoon (automobile) In transportation, platooning or flocking is a method for driving a group of vehicles together. It is meant to increase the capacity of roads via an automated highway system. Platoons decrease the distances between cars or trucks using electron ...
*
Retrofitting Retrofitting is the addition of new technology or features to older systems. Retrofits can happen for a number of reasons, for example with big capital expenditures like naval vessels, military equipment or manufacturing plants, businesses or go ...
*
Smart camera A smart camera (sensor) or intelligent camera (sensor) or (smart) vision sensor or intelligent vision sensor or smart optical sensor or intelligent optical sensor or smart visual sensor or intelligent visual sensor is a machine vision system whic ...
*
Technological unemployment Technological unemployment is the loss of jobs caused by technological change. It is a key type of structural unemployment. Technological change typically includes the introduction of labour-saving "mechanical-muscle" machines or more efficie ...
*
Unmanned ground vehicle An unmanned ground vehicle (UGV) is a vehicle that operates while in contact with the ground and without an onboard human presence. UGVs can be used for many applications where it may be inconvenient, dangerous, or impossible to have a human op ...
*
Unmanned aerial vehicle An unmanned aerial vehicle (UAV), commonly known as a drone, is an aircraft without any human pilot, crew, or passengers on board. UAVs are a component of an unmanned aircraft system (UAS), which includes adding a ground-based controller ...
*
Vehicle infrastructure integration Vehicle infrastructure integration (VII) is an initiative fostering research and applications development for a series of technologies directly linking road vehicles to their physical surroundings, first and foremost in order to improve road saf ...
*
Vehicle safety technology Vehicle safety technology (VST) in the automotive industry refers to the special technology developed to ensure the safety and security of automobiles and their passengers. The term encompasses a broad umbrella of projects and devices within the ...
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Vision processing unit A vision processing unit (VPU) is (as of 2018) an emerging class of microprocessor; it is a specific type of AI accelerator, designed to accelerate machine vision tasks. Overview Vision processing units are distinct from video processing units ...
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Lane centering In road-transport terminology, lane centering, also known as auto steer or autosteer, is an advanced driver-assistance system that keeps a road vehicle centered in the lane, relieving the driver of the task of steering. Lane centering is simil ...
* Measurement of Assured Clear Distance Ahead *
Electronic stability control Electronic stability control (ESC), also referred to as electronic stability program (ESP) or dynamic stability control (DSC), is a computerized technology that improves a vehicle's stability by detecting and reducing loss of traction ( skiddi ...
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Collision avoidance system A collision avoidance system (CAS), also known as a pre-crash system, forward collision warning system, or collision mitigation system, is an advanced driver-assistance system designed to prevent or reduce the severity of a collision. In its ...


References


Further reading

* * * * * * * * * * * *Gereon Meyer, Sven Beiker (Eds.),
Road Vehicle Automation
'' Springer International Publishing 2014, , and following issues:
Road Vehicle Automation 2
' (2015),
Road Vehicle Automation 3
' (2016),
Road Vehicle Automation 4
' (2017),
Road Vehicle Automation 5
' (2018),
Road Vehicle Automation 6
' (2019). These books are based on presentations and discussions at the Automated Vehicles Symposium organized annually by TRB and
AUVSI The Association for Uncrewed Vehicle Systems International, also known as AUVSI, is an international nonprofit organization dedicated to promoting and supporting the unmanned systems and robotics industry through communication, education and lea ...
. * {{Authority control Automotive technologies Automotive safety Driving Emerging technologies Robotics Transport culture