Intersection signal design method based on demand-supply double fluctuation

A signal design, intersection technology, applied in the control of traffic signals, road vehicle traffic control system, traffic flow detection and other directions, can solve the problems of rough signal adjustment, waste of resources and congestion, congestion, etc., to save time and space resources , smooth operation, the effect of relieving congestion

Active Publication Date: 2021-04-16
安徽百诚慧通科技股份有限公司
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Problems solved by technology

[0004]1) The fixed signal control scheme has relatively large design limitations and cannot adapt to the rules and demands of traffic flow changing over time, which is likely to cause waste of resources and congestion
[0005]2) Although the time-segmented signal control scheme design can meet the requirements of dynamic adjustment signal control at intersections brought about by changes in traffic flow over time, the signal adjustment is too rough , not refined enough, macroscopically c

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  • Intersection signal design method based on demand-supply double fluctuation
  • Intersection signal design method based on demand-supply double fluctuation
  • Intersection signal design method based on demand-supply double fluctuation

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Embodiment

[0081] In order to make the object, technical solution and advantages of the invention clearer, the present invention will be further described in detail below in combination with the target intersection data.

[0082] Such as figure 1 As shown, a design method of intersection signal based on demand-supply double fluctuation, the specific steps are as follows.

[0083] Step S1, through the front-end intelligent traffic information collection equipment, the traffic data at the intersection and the headway data at the stop line of the entrance are obtained in real time. This step specifically includes the following sub-steps:

[0084] Step S11, in this embodiment, the diversion flow rate of the sub-inlet with a time granularity of 5 minutes is used: q ij (vehicle / 5min). Obtain the turning flow q of each entrance road at the intersection in real time for 5 minutes through the front-end flow detection equipment ij , forming a data set Q * , and then converted into equivalent...

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Abstract

The invention discloses an intersection signal design method based on demand-supply double fluctuation, and belongs to the field of traffic management and control. The method aims to solve the problem that in the prior art, during dynamic signal control design, the influence of traffic supply and demand dual fluctuation on intersection signal control is not comprehensively considered, and a traffic signal control model established only by considering real-time change of demands has limitation. The intersection dynamic signal control scheme is designed under the condition of considering the dual influences of traffic flow change and intersection traffic capacity fluctuation at the same time, the signal control scheme better meeting the actual conditions of the intersection is obtained, more efficient and stable operation of the intersection is facilitated, time and space resources are saved, and congestion is relieved.

Description

technical field [0001] The invention relates to the field of traffic management and control, in particular to a design method for intersection signals based on demand-supply double fluctuations. Background technique [0002] In recent years, my country's economic and technological level has developed rapidly, and the level of urbanization has continued to increase. As the most basic urban operation, urban transportation has been comprehensively improved. The great progress of urban transportation has greatly improved people's daily activities, social economy and other aspects. However, there are advantages and disadvantages in everything. The rapid development of urban traffic and the increasing number of urban motor vehicles make urban traffic more congested. According to statistics, the number of traffic congestion in Chinese cities during peak hours is about 66.7%. The city is more serious, and the traffic in some parts of the city is even at or close to paralysis, especi...

Claims

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Application Information

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IPC IPC(8): G08G1/08G08G1/081G08G1/01
Inventor 丁神健秦忱忱吴磊代宗程佑邦姚璐
Owner 安徽百诚慧通科技股份有限公司
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