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Integration Of Traffic Data With Navigation Systems
Integration of traffic data with navigation systems enables navigation systems to use traffic and other related data to optimise routing and travel times by taking into account traffic conditions and other disruptions to traffic flows. The integration may occur in a number of ways. For example, integrated automobile navigation systems use an on-board navigation system and cellular telephone. The navigation system would use the global positioning system (GPS) to position the automobile with respect to streets in a map database, to determine a route to the destination and to update the location as the automobile moves. A cellular telephone in the automobile may then communicate with a traffic information server to obtain travel times for each street segment of the route, which would then be used to refine the planned route, or to offer to the driver as an alternative. The cellular telephone can also be used to provide dynamic travel time information to the traffic information server, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traffic Reporting
Traffic reporting is the near real-time distribution of information about road conditions such as traffic congestion, detours, and traffic collisions. The reports help drivers anticipate and avoid traffic problems. Traffic reports, especially in cities, may also report on major delays to mass transit that does not necessarily involve roads. In addition to periodic broadcast reports, traffic information can be transmitted to GPS units, smartphones, and personal computers. Methods of gathering information There are several methods in use today to gather traffic speed and incident info, ranging from professional reporters, to GPS crowdsourcing to combinations of both methods. * INRIX uses its network of over 175 million vehicles and devices to gather speed data from mobile phones, trucks, delivery vans, and other fleet vehicles equipped with GPS locator devices including smart phones and Ford SYNC and Toyota Entune and much of Europe, South America, and Africa. * Google Traffic works ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automobile 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 a road. When directions are needed routing can be calculated. On the fly traffic information (road closures, congestion) can be used to adjust the route. Dead reckoning using distance data from sensors attached to the drivetrain, an accelerometer, a gyroscope, and a magnetometer can be used for greater reliability, as GNSS signal loss and/or multipath can occur due to urban canyons or tunnels. Mathematically, automotive navigation is based on the shortest path problem, within graph theory, which examines how to identify the path that best meets some criteria (shortest, cheapest, fastest, etc.) between two points in a large network. Automotive navigation systems are crucial for the development of self-driving cars. History Automotiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Global Positioning System
The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of the global navigation satellite systems (GNSS) that provides geolocation and time information to a GPS receiver anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. It does not require the user to transmit any data, and operates independently of any telephonic or Internet reception, though these technologies can enhance the usefulness of the GPS positioning information. It provides critical positioning capabilities to military, civil, and commercial users around the world. Although the United States government created, controls and maintains the GPS system, it is freely accessible to anyone with a GPS receiver. The GPS project was started by the U.S. Department of Defense in 1973. The first prototype spacecraft was lau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bluetooth
Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances and building personal area networks (PANs). In the most widely used mode, transmission power is limited to 2.5 milliwatts, giving it a very short range of up to . It employs UHF radio waves in the ISM bands, from 2.402GHz to 2.48GHz. It is mainly used as an alternative to wire connections, to exchange files between nearby portable devices and connect cell phones and music players with wireless headphones. Bluetooth is managed by the Bluetooth Special Interest Group (SIG), which has more than 35,000 member companies in the areas of telecommunication, computing, networking, and consumer electronics. The IEEE standardized Bluetooth as IEEE 802.15.1, but no longer maintains the standard. The Bluetooth SIG oversees development of the specification, manages the qualification program, and protects the trademarks. A manufacturer must meet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FM Broadcasting
FM broadcasting is a method of radio broadcasting using frequency modulation (FM). Invented in 1933 by American engineer Edwin Armstrong, wide-band FM is used worldwide to provide high fidelity sound over broadcast radio. FM broadcasting is capable of higher fidelity—that is, more accurate reproduction of the original program sound—than other broadcasting technologies, such as AM broadcasting. It is also less susceptible to common forms of interference, reducing static and popping sounds often heard on AM. Therefore, FM is used for most broadcasts of music or general audio (in the audio spectrum). FM radio stations use the very high frequency range of radio frequencies. Broadcast bands Throughout the world, the FM broadcast band falls within the VHF part of the radio spectrum. Usually 87.5 to 108.0 MHz is used, or some portion thereof, with few exceptions: * In the former Soviet republics, and some former Eastern Bloc countries, the older 65.8–74 MHz band ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clear Channel Communications
iHeartMedia, Inc., formerly CC Media Holdings, Inc., is an American mass media corporation headquartered in San Antonio, Texas. It is the holding company of iHeartCommunications, Inc. (formerly Clear Channel Communications, Inc.), a company founded by Lowry Mays and Red McCombs, B. J. "Red" McCombs in 1972, and later taken private by Bain Capital and Thomas H. Lee Partners through a leveraged buyout in 2008. As a result of this buyout, Clear Channel Communications, Inc., began to operate as a wholly owned subsidiary of CC Media Holdings, Inc. On September 16, 2014, CC Media Holdings, Inc. was rebranded iHeartMedia, Inc., and Clear Channel Communications, Inc., became iHeartCommunications, Inc. Overview iHeartMedia, Inc. specializes in radio broadcasting, podcasting, Digital media, digital and live events through Division (business), division iHeartMedia (sans "Inc." suffix; formerly Clear Channel Media and Entertainment, Clear Channel Radio, et al.) and subsidiary iHeartMedia an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 a road. When directions are needed routing can be calculated. On the fly traffic information (road closures, congestion) can be used to adjust the route. Dead reckoning using distance data from sensors attached to the drivetrain, an accelerometer, a gyroscope, and a magnetometer can be used for greater reliability, as GNSS signal loss and/or multipath can occur due to urban canyons or tunnels. Mathematically, automotive navigation is based on the shortest path problem, within graph theory, which examines how to identify the path that best meets some criteria (shortest, cheapest, fastest, etc.) between two points in a large network. Automotive navigation systems are crucial for the development of self-driving cars. History Automotiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GPS Device
A satellite navigation device (satnav device) is a user equipment that uses one or more of several global navigation satellite systems (GNSS) to calculate the device's geographical position and provide navigational advice. Depending on the software used, the satnav device may display the position on a map, as geographic coordinates, or may offer routing directions. As of September 2020, there were four operational GNSS systems, the original United States' Global Positioning System (GPS), the European Union's Galileo, Russia's GLONASS, and China's BeiDou Navigation Satellite System. The Indian Regional Navigation Satellite System (IRNSS) will follow and Japan's Quasi-Zenith Satellite System (QZSS) scheduled for 2023 will augment the accuracy of a number of GNSS. A satellite navigation device can retrieve location and time information from one or more GNSS systems in all weather conditions, anywhere on or near the Earth's surface. Satnav reception requires an unobstructed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waze
Waze (; he, ווייז, label=Hebrew), formerly FreeMap Israel, is a subsidiary company of Google that provides satellite navigation software on smartphones and other computers that support the Global Positioning System (GPS). In addition to turn-by-turn navigation, it incorporates user-submitted travel times and route details while downloading location-dependent information over a cellular network. Waze describes its application as a community-driven initiative that is free to download and use. The software was originally developed in Israel by Waze Mobile, a company founded by Israeli entrepreneurs Ehud Shabtai, Amir Shinar, and Uri Levine. Funding for the initial project was provided by two Israeli venture capital firms, Magma and Vertex Ventures Israel, as well as by an early-stage American venture capital firm, Bluerun Ventures. In June 2013, Waze Mobile was acquired by Google for US$1.3 billion. The application generates revenue through hyperlocal advertising to an est ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Road Traffic Management
: ''For the road traffic science, see various articles under Road traffic management.'' Road traffic control involves directing vehicular and pedestrian traffic around a construction zone, accident or other road disruption, thus ensuring the safety of emergency response teams, construction workers and the general public. Traffic control also includes the use of CCTV and other means of monitoring traffic by local or state roadways authorities to manage traffic flows and providing advice concerning traffic congestion. Traffic Control Technicians (TCT's) or Traffic Control Supervisors (TCS's) are often known as "lollipop men" (usually this name only applies to TCT's working near schools to aid pupils in road crossing) from the appearance of their ''Stop/Slow'' signs, known as "Stop bats". Overview Road Traffic control is an outdoors occupation, night or day for long hours in all weathers, and is considered a dangerous occupation due to the high risk of being struck by passing vehicl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
