Method for analyzing relevance of adjacent signalized intersections

Abstract

The invention discloses a method for analyzing relevance of adjacent signalized intersections. The method comprises the following steps of: (1) acquiring the flow of entrances of the signalized intersections through an annunciator by utilizing an induction coil detector and then forecasting the flow; (2) manually acquiring static traffic data of the signalized intersections; (3) computing the optimum timing scheme of single point control of the signalized intersections by a computer; (4) determining coordination phase of coordination control of the two signalized intersections by the computer; (5) determining a coordination mode of coordination control of the two signalized intersections by the computer; (6) computing cycle length relevancy of a ith signalized intersection and a (i+1)th signalized intersection; (7) computing intersection distance relevancy of the ith signalized intersection and the (i+1)th signalized intersection; (8) computing path flow relevancy of the ith signalized intersection and the (i+1)th signalized intersection; (9) computing comprehensive relevancy of the ith signalized intersection and the (i+1)th signalized intersection; and (10) determining comprehensive relevancy threshold values of the ith signalized intersection and the (i+1)th signalized intersection when the ith signalized intersection and the (i+1)th signalized intersection are classified into the same subsegment.

Description

Technical field [0001] The invention relates to a method for dynamic division of traffic control sub-areas in an urban traffic control system. More specifically, the invention relates to a method for analyzing the correlation of adjacent signalized intersections. Background technique [0002] When signal control is performed on a road network that contains hundreds or even thousands of intersections, the road network is often divided into several mutually independent areas, and each area contains one or multiple adjacent signal intersections. The area is called the "traffic control sub-area". The division of traffic control sub-zones is of great significance for improving the stability of the traffic control system and determining the best control method for signalized intersections. [0003] When dividing the "traffic control sub-areas", it is necessary to analyze the correlation between adjacent signalized intersections to determine whether they are suitable for being divided in...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the lack of systematicness and scientificity in the structure of the correlation degree model and the determination of the critical threshold, the inability to accurately quantify the degree of connection between intersections, and the difficulty in adapting to the requirements of the adaptive traffic control system. Provide A method for analyzing the correlation of adjacent signalized intersections

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