Single-intersection traffic signal control method based on secondary parking

A technology of traffic signal and control method, which is applied in the field of single-intersection traffic signal control and system based on secondary parking, can solve the problem of inability to accurately control the traffic signal at the intersection, so as to improve the operation efficiency, improve the utilization rate, and reduce the congestion. Effect

CN108288394AInactive Publication Date: 2018-07-17SHANGHAI INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2018-07-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a single-intersection traffic signal control method based on secondary parking and a system thereof. According to the method and the system, electronic police license plate identification data at the intersection are utilized for acquiring full-sample vehicle delay information and performing secondary parking determining, and a timing solution in a next period is adjusted according to the secondary parking condition of each phase, thereby improving intersection utilization rate. According to the method and the system, secondary queuing is used as an optimizing index; andcompared with a traditional method, the method of the invention can realize consideration of a plurality of control targets such as saturation equalization, near saturation control and queuing restriction, thereby realizing relatively high benefit in a non-peak period and a peak period. The method of the invention can effectively improve intersection operation efficiency and reduces traffic jams.
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Description

technical field

[0001] The invention relates to a single intersection traffic signal control method and system based on secondary parking. Background technique

[0002] With the rapid development of social economy and the rapid growth of urban scale, the congestion of signal-controlled intersections has become a difficult problem for cities. Traditional traffic signal control methods can no longer effectively solve the increasingly serious problem of traffic congestion. New requirements were put forward. The reasonable timing of urban traffic signal control is an important means to better utilize the space-time resources of urban roads. With the intensification of traffic congestion, the requirements for the refinement and rationalization of signal timing are even higher.

[0003] The traffic signal control system adjusts the adaptive timing scheme according to the change of traffic flow, which is an effective measure to improve the operation efficiency of the intersection ...

Examples

Embodiment Construction

[0039] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] Such as figure 1 As shown, the present invention provides a kind of single intersection traffic signal control method based on secondary parking, comprising:

[0041] Step S1, using the electronic police license plate recognition data at the intersection, to obtain the average travel time t of the free section required for the vehicle to leave the stop line at the upstream intersection and arrive at the stop line at the downstream intersection without a second stop i , and obtain the travel time T required for vehicles to leave the stop line at the upstream intersection to reach the stop line at the downstream intersection in the previous cycle i ;

[0042] Here, the travel time T i It refers to the time required for the v...