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Signal control method and system for queue jumping priority of straight bus by using right-turn lane

A signal control and lane-turning technology, which is applied in traffic control systems, road vehicle traffic control systems, traffic signal control, etc., can solve the problems of traffic safety hazards, impact on upstream intersections, and increase in queuing length, etc., to improve Improve traffic efficiency, improve traffic safety, and reduce conflicts

Active Publication Date: 2021-11-16
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, right-turning vehicles on the bus-sharing lane are often blocked by the bus in front, and the blocked right-turning social vehicles will interfere with the subsequent arriving buses, even if the green light is released with the straight-going vehicles, It will also conflict with pedestrians and bicycles going straight in the same direction, resulting in traffic safety hazards and low efficiency
Moreover, if the bus arrival frequency on this lane is high, it is easy to cause the queue length to increase, and overflow may occur seriously, affecting the upstream intersection and causing road congestion

Method used

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  • Signal control method and system for queue jumping priority of straight bus by using right-turn lane
  • Signal control method and system for queue jumping priority of straight bus by using right-turn lane
  • Signal control method and system for queue jumping priority of straight bus by using right-turn lane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 4

[0136] Embodiment 1 Four-phase symmetrical clearance intersection

[0137] The timing of four-phase symmetrical release intersections takes the south entrance as an example, assuming that the cycle is 100s. The time for going straight from north to south and going straight from east to west is 27s, the time to turn left from north to south and turn left from east to west is both 17s, and the time for a yellow light is 3s. Such as Figure 4 The distance L between the parking line 15 at the west entrance and the conflict point 20 in the bus pioneer area at the south entrance W 40m, the distance D from the parking line 14 at the south entrance to the north exit S 50m. Vehicle speed V at the west entrance passing through the intersection W Assume that it is 5m / s, and the road speed limit is 60km / h. Assume that the current right turn at the intersection and the number of buses queuing up on the public bus lane are 1.

[0138] (1) Set left turn diversion line, bus first area, b...

Embodiment 2

[0146] Embodiment 2 Four-phase clockwise single-side wheel-laden intersection

[0147] The four-phase clockwise unilateral rotation of the intersection takes the south entrance as an example, assuming that the cycle is 120s. The single release time of each entrance is 27s, and the yellow light time is 3s. Such as Figure 4 The distance L between the parking line 15 at the west entrance and the conflict point 20 in the bus pioneer area at the south entrance W 40m, the distance D from the parking line 14 at the south entrance to the north exit S 50m. Vehicle speed V at the west entrance passing through the intersection W Assume that it is 5m / s, and the road speed limit is 40km / h. Assume that the current right turn at the intersection and the number of buses queuing up on the public bus lane are 1.

[0148] (1) Set left-turn diversion line, bus first area, bus signal lights, LED electronic display

[0149] Set the left-turn diversion line according to the geometric shape of...

Embodiment 3 3

[0155] Embodiment 3 Three-phase intersection

[0156] Take the south entrance of the three-phase timed intersection as an example, assuming that the period is 75s. The time for going straight from east to west and turning left is 22s, the time for north-south traffic is 22s, and the time for yellow lights is 3s. Such as Figure 4 The distance L between the parking line 15 at the west entrance and the conflict point 20 in the bus pioneer area at the south entrance W 30m, the distance D from the parking line 14 at the south entrance to the north exit S It is 40m. Vehicle speed V at the west entrance passing through the intersection W Assume that it is 5m / s, and the speed limit of the road section is 60km / h. Assume that the current right turn at the intersection and the number of buses queuing up on the public bus lane are 2, and the length of the bus is 12m.

[0157] (1) Set left-turn diversion line, bus first area, bus signal lights, LED electronic display

[0158] Set th...

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Abstract

The invention provides a signal control method and system for queue jumping priority of a straight bus by using a right turn lane, and belongs to the technical field of urban road traffic control. The method comprises the following steps that a bus queues at a right turn at an intersection and a bus shared lane are judged, a green flashing phase is executed by a bus special signal auxiliary lamp, and the bus is driven into a bus preceding area; when the bus special signal auxiliary lamp executes the green light phase, the main signal lamp keeps the red light phase and the bus passes through the intersection preferentially until the main signal lamp turns green, the straight-going social vehicles pass, and when the main signal lamp executes the red light phase again and the bus special signal auxiliary lamp also executes the red light phase, the bus waits at the stop line of the entrance lane. According to the invention, the time consumed for the bus to pass through the intersection is reduced, the passing efficiency of the bus is improved, the traffic safety is guaranteed, and the queue jumping priority of the bus in time and space is realized.

Description

technical field [0001] The invention belongs to the field of urban road traffic control, and in particular relates to a signal control method and system for buses on an intersection to preferentially pass through the intersection. Background technique [0002] In recent years, the number of cars in the country has increased, and the problem of traffic congestion has become increasingly serious. Practical experience at home and abroad shows that the priority development of urban public transport is of great significance for solving the problem of traffic congestion in Chinese cities, ensuring sustainable urban development, and promoting the development of national urbanization. Therefore, how to use limited road resources reasonably and efficiently has become one of the important measures to solve road congestion. [0003] At urban road intersections, when the right-turning traffic volume is small or the space resources at the intersection are limited, the method of sharing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/087G08G1/08G08G1/09G08G1/095G08G1/123
CPCG08G1/087G08G1/08G08G1/09G08G1/095G08G1/123
Inventor 张鹏赵磊顾云翔陈涛
Owner JIANGSU UNIV
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