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Queue Jump Lane
:''"Queue jump" may also refer to cutting in line.'' A queue jump is a type of roadway geometry used to provide preference to buses at intersections, often found in bus rapid transit systems. It consists of an additional travel lane on the approach to a signalised intersection. This lane is often restricted to transit vehicles only. A queue jump lane is usually accompanied by a signal which provides a phase specifically for vehicles within the queue jump. Vehicles in the queue jump lane get a " head-start" over other queued vehicles and can therefore merge into the regular travel lanes immediately beyond the signal. The intent of the lane is to allow the higher-capacity vehicles to cut to the front of the queue, reducing the delay caused by the signal and improving the operational efficiency of the transit system. Design considerations Queue jumps are only effective in certain situations. First, there has to be an existing source of delay or roadway congestion; if there i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queue Jump - Continued Lane
__NOTOC__ Queue () may refer to: * Queue area, or queue, a line or area where people wait for goods or services Arts, entertainment, and media *''ACM Queue'', a computer magazine * ''The Queue'' (Sorokin novel), a 1983 novel by Russian author Vladimir Sorokin * ''The Queue'' (Abdel Aziz novel), a 2013 novel by Egyptian author Basma Abdel Aziz Mathematics and technology *Queue (abstract data type), a type of data structure in computer science **Circular queue **Double-ended queue, also known as a deque **Priority queue *FIFO (computing and electronics) *Load (computing) or queue, system load of a computer's operating system *Message queue *Queueing theory, the study of wait lines Other uses * Queue (hairstyle), a Manchurian pigtail * The Queue, a queue to view the coffin of Queen Elizabeth II during her lying in state See also *Cue (other) *FIFO (other) *First-come, first-served *Q (other) * Q, the letter *Que (other) QUE or que may refe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opticom System
Traffic signal preemption (also called traffic signal prioritisation) is a system that allows the normal operation of traffic lights to be preempted. The most common use of these systems manipulates traffic signals in the path of an emergency vehicle, halting conflicting traffic and allowing the emergency vehicle right-of-way, thereby reducing response times and enhance traffic safety. Signal preemption can also be used on tram, light-rail and bus rapid transit systems, to allow public transportation priority access through intersections, and by railroad systems at crossings to prevent collisions. Implementation Traffic preemption is implemented in a variety of ways. Traffic light activation devices can be installed on road vehicles, integrated with transport network management systems, or operated by remote control from a fixed location, such as a fire station, or by an emergency call dispatcher. Traffic lights are equipped to receive an activation signal which interrupts the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bus Rapid Transit
Bus rapid transit (BRT), also called a busway or transitway, is a bus-based public transport system designed to have much more capacity, reliability and other quality features than a conventional bus system. Typically, a BRT system includes roadways that are dedicated to buses, and gives priority to buses at intersections where buses may interact with other traffic; alongside design features to reduce delays caused by passengers boarding or leaving buses, or paying fares. BRT aims to combine the capacity and speed of a light rail or metro system (LRT, HRT) with the flexibility, lower cost and simplicity of a bus system. The world's first BRT system was the Busway in Runcorn New Town, England, which entered service in 1971. , a total of 166 cities in six continents have implemented BRT systems, accounting for of BRT lanes and about 32.2 million passengers every day. The majority of these are in Latin America, where about 19.6 million passengers ride daily, and w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transit Signal Priority
Bus priority or transit signal priority (TSP) is a name for various techniques to improve service and reduce delay for mass transit vehicles at intersections (or junctions) controlled by traffic signals. TSP techniques are most commonly associated with buses, but can also be used along tram/streetcar or light rail lines, especially those that mix with or conflict with general vehicular traffic. Techniques Transit signal priority techniques can generally be classified as "active" or "passive". Passive TSP techniques typically involve optimizing signal timing or coordinating successive signals to create a “green wave” for traffic along the transit line's route. Passive techniques require no specialized hardware (such as bus detectors and specialized traffic signal controllers) and rely on simply improving traffic for ''all'' vehicles along the transit vehicle's route. Active TSP techniques rely on detecting transit vehicles as they approach an intersection and adjusting t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Straddling Bus
The Transit Elevated Bus (TEB) () was a proposed new bus concept where a guided bus straddles above road traffic, giving it the alternative names such as straddling bus, straddle bus, land airbus, or tunnel bus by international media. A trial was scheduled to begin in Beijing's Mentougou District by late 2010. However the project was not given authorization by the district authorities because the technology was considered to be too immature, and further trials were subject to the development of a concept to prove the system actually works. The city of Manaus, Brazil, has also evaluated the option of installing a straddle bus in its city streets. At the time of the 2016 unveiling of the scale model, it was reported that a prototype would be deployed by mid 2016 in Qinhuangdao. Four other Chinese cities, Nanyang, Shenyang, Tianjin, and Zhoukou, had also signed contracts for pilot projects involving the construction of test tracks beginning in 2016. However a test of a prototype d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bus Lane
A bus lane or bus-only lane is a lane restricted to buses, often on certain days and times, and generally used to speed up public transport that would be otherwise held up by traffic congestion. The related term busway describes a roadway completely dedicated for use by buses. Bus lanes are a key component of a high-quality bus rapid transit (BRT) network, improving bus travel speeds and reliability by reducing delay caused by other traffic. A dedicated bus lane may occupy only part of a roadway which also has lanes serving general automotive traffic; in contrast to a transit mall which is a pedestrianized roadway also served by transit. History The first bus lane is often erroneously attributed to Chicago, where in 1939 Sheridan Road was installed with reversible lanes north of Foster Avenue. The setup consisted of three-lanes towards the peak direction (south in the morning; north in the evening), and one contraflow lane. None of the lanes exclusively carried buses, b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Advanced Stop Line
An advanced stop line (ASL), also called advanced stop box or bike box, is a type of road marking at signalised road junctions allowing certain types of vehicle a head start when the traffic signal changes from red to green. Advanced stop lines are implemented widely in Denmark, the United Kingdom, and other European countries but the idea was first conceptualized by transportation planner Michael Lynch for the city of Portland, Oregon in response to numerous bike crashes at intersections. Description Most commonly associated with bicycles, they may also be provided for buses and motorcycles. There are two parallel stop lines at the intersection, the first one at which all traffic except that for which the facility is provided must stop, and a second one nearer the intersection to which only specified vehicles may proceed. If the signals change to red when a vehicle is crossing the first line, the driver must stop at the second line The area between the stop lines is the "reser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High-occupancy Vehicle
A high-occupancy vehicle lane (also known as an HOV lane, carpool lane, diamond lane, 2+ lane, and transit lane or T2 or T3 lanes) is a restricted traffic lane reserved for the exclusive use of vehicles with a driver and one or more passengers, including carpools, vanpools, and transit buses. These restrictions may be only imposed during peak travel times or may apply at all times. According to the criteria used there are different types of lanes: temporary or permanent with concrete barriers; two-directional or reversible; and exclusive, concurrent or contraflow lanes working in peak periods. The normal minimum occupancy level is 2 or 3 occupants. Many jurisdictions exempt other vehicles, including motorcycles, charter buses, emergency and law enforcement vehicles, low-emission and other green vehicles, and/or single-occupancy vehicles paying a toll. HOV lanes are normally introduced to increase average vehicle occupancy and persons traveling with the goal of reducing traffic c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RFID
Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. An RFID system consists of a tiny radio transponder, a radio receiver and transmitter. When triggered by an electromagnetic interrogation pulse from a nearby RFID reader device, the tag transmits digital data, usually an identifying inventory number, back to the reader. This number can be used to track inventory goods. Passive tags are powered by energy from the RFID reader's interrogating radio waves. Active tags are powered by a battery and thus can be read at a greater range from the RFID reader, up to hundreds of meters. Unlike a barcode, the tag does not need to be within the line of sight of the reader, so it may be embedded in the tracked object. RFID is one method of automatic identification and data capture (AIDC). RFID tags are used in many industries. For example, an RFID tag attached to an automobile during production can be used to track ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Logical Conjunction
In logic, mathematics and linguistics, And (\wedge) is the truth-functional operator of logical conjunction; the ''and'' of a set of operands is true if and only if ''all'' of its operands are true. The logical connective that represents this operator is typically written as \wedge or . A \land B is true if and only if A is true and B is true, otherwise it is false. An operand of a conjunction is a conjunct. Beyond logic, the term "conjunction" also refers to similar concepts in other fields: * In natural language, the denotation of expressions such as English "and". * In programming languages, the short-circuit and control structure. * In set theory, intersection. * In lattice theory, logical conjunction ( greatest lower bound). * In predicate logic, universal quantification. Notation And is usually denoted by an infix operator: in mathematics and logic, it is denoted by \wedge, or ; in electronics, ; and in programming languages, &, &&, or and. In Jan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cutting In Line
Cutting in line, also known as line/queue jumping, butting, barging, budging, bunking, skipping, breaking, ditching, shorting, pushing in, or cutsies, is the act of entering a queue or line at any position other than the end. The act is extremely stigmatized in most human cultures and stands in stark contrast to the normal policy of first come, first served that governs most queue areas. Reaction A negative and very assertive response from the rear of the line is expected when someone has cut in line up ahead under any circumstances in virtually all cultures. According to one study, a person cutting in line has a 54% chance that others in the line will object. With two people cutting in line, there is a 91.3% chance that someone will object. The proportion of people objecting from anywhere behind the cutter is 73.3%, with the person immediately behind the point of intrusion objecting most frequently. Nevertheless, physical altercation resulting from cutting is rare. It was reporte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loop Detectors
An induction or inductive loop is an electromagnetic communication or detection system which uses a moving magnet or an alternating current to induce an electric current in a nearby wire. Induction loops are used for transmission and reception of communication signals, or for detection of metal objects in metal detectors or vehicle presence indicators. A common modern use for induction loops is to provide hearing assistance to hearing-aid users. Applications Vehicle detection Vehicle detection loops, called ''inductive-loop traffic detectors'', can detect vehicles passing or arriving at a certain point, for instance approaching a traffic light or in motorway traffic. An insulated, electrically conducting loop is installed in the pavement. The electronics unit applies alternating current electrical energy onto the wire loops at frequencies between 10 k Hz to 200 kHz, depending on the model. The inductive-loop system behaves as a tuned electrical circuit in which the l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
