Quick bus signal priority cooperative control method of primary and secondary crossings

A technology of coordinated control and signal priority, applied in traffic control systems, traffic control systems of road vehicles, instruments, etc., can solve the problem of not improving the overall traffic efficiency of arterial lines, not considering the coordinated control of primary and secondary intersections, and affecting downstream bus operation services. Quality and other issues to achieve the effect of improving the efficiency of trunk line operation

Active Publication Date: 2013-07-24
SOUTHEAST UNIV
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AI Technical Summary

Problems solved by technology

[0004] The traditional bus signal priority control method only considers single intersection control, and does not consider the coordinated control of primary and secondary intersections, which makes the cumulative delay of buses at intersections increase continuously and affects the service quality of downstream buses, and does not improve the overall quality of arterial lines. traffic efficiency

Method used

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  • Quick bus signal priority cooperative control method of primary and secondary crossings
  • Quick bus signal priority cooperative control method of primary and secondary crossings
  • Quick bus signal priority cooperative control method of primary and secondary crossings

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] as attached figure 1 Shown is a flow chart of a method for realizing the coordinated control of bus rapid transit (BRT) at primary and secondary intersections, which will be further described in conjunction with examples below.

[0031] 1) Collect the initial signal timing information, road information, traffic flow information, public transport facilities and operation information of each intersection signal light for primary and secondary intersections:

[0032] The initial signal timing information of primary and secondary intersection signal lights includes the primary and secondary intersection initial signal cycle duration C, phase number Z and the duration of each phase, and the green signal ratio of each phase λ i And display the green light time, the green light time interval I of each phase and the yellow light duration, the road information includes ...

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Abstract

The invention discloses a quick bus signal priority cooperative control method of primary and secondary crossings, and is applied to a BRT (Bus Rapid Transit) system. The method comprises the steps that a plurality of detectors are arranged at setting positions of primary crossings for predicting the arrival time of buses in advance, the corresponding signal phase lengths of the crossings are adjusted in proportion, and the signal lamps of the crossings are controlled; and simultaneously, for the secondary crossings, the bus stop delay is converted into a space length, and cooperative control is carried out by amending the space distance in a path section and calculating green time difference. The method overcomes the disadvantage that a traditional signal priority control method does not consider crossing cooperation, and the total traffic efficiency of main line can be enabled to be optimal.

Description

technical field [0001] The invention belongs to the technical field of bus signal control, is used in a BRT system of a bus rapid transit, and relates to a signal priority cooperative control method of a primary and secondary intersection used in a bus rapid transit. Background technique [0002] As an integral part of the modern urban traffic system, urban public transport occupies a pivotal position in the urban traffic system. With the development of social economy, urban traffic problems are becoming more and more prominent, and gradually become an important factor hindering the development of social economy. Vigorously developing public transportation is a powerful means to solve urban traffic problems, and providing signal priority for public transportation is also a technical means to improve the efficiency of public transportation. [0003] In the existing BRT system, due to the establishment of bus-only lanes, the delay of buses on road sections can be ignored; how...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/087
Inventor 杨敏陈云骥王炜孙刚赵德
Owner SOUTHEAST UNIV
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