Optimization method for signal coordination control of urban road intersections under over-saturation condition

A technology for coordinated control and optimization methods, applied in the direction of controlling traffic signals, etc.
CN103208191AActive Publication Date: 2013-07-17上海济安交通工程咨询有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
上海济安交通工程咨询有限公司
Publication Date
2013-07-17

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Abstract

The invention discloses an optimization method for signal coordination control of urban road intersections under an over-saturation condition. Compared with the prior art, based on analysis of upstream and downstream traffic stream states of adjacent intersections, through using the wave theory for reference, and by comparing sizes of stop waves of upstream intersections and start waves of downstream intersections as well as vehicle queue conditions of upstream intersections in an artery direction, status values of signal control intersections are determined, and the signal coordination control reliable interval (phase difference) under different states is obtained, accordingly, queue overflow of over-saturation intersections can be controlled within a certain range, the probability of deadlocks at the over-saturation intersections can be reduced greatly, and the queue overflow becomes beneficial self-adjustment of the road intersections under the over-saturation condition.
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Description

technical field

[0001] The invention relates to an optimization method for signal coordination control, in particular to an optimization method for signal coordination control under the oversaturated condition of urban road intersections used in the field of intelligent transportation for signal coordination control of road intersections. Background technique

[0002] Urban road intersection signal coordination control system is playing an increasingly important role in urban traffic, and urban traffic managers are trying to use urban traffic signal coordination control system to alleviate urban traffic problems. Due to the rapid growth of motor vehicles, many cities have experienced saturation or even oversaturation of road traffic. Under the condition of oversaturation, the traffic capacity between intersections does not match, which will cause queuing aggregation and easy queuing overflow.

[0003] The urban road intersection signal coordination control system has the adv...

Claims

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