Traffic passage multi-target comprehensive optimization method

Abstract

The invention discloses a traffic passage multi-target comprehensive optimization method. The method comprises steps that S1, a signal period C is deduced from the effective green light time gei of each period of an intersection, and the average delay time of vehicles, stop times of the vehicles at the intersection and traffic capacity of the intersection are obtained in combination with investigated traffic flow data; S2, an intersection multi-target optimization model is established by utilizing a formula (1), in the formula (1), parameters D, H and CAP are solved by utilizing a formula (2),and the formula (1) and the formula (2) satisfy a formula (3); and S3, an intersection multi-target optimization model is solved, and constraint is performed by utilizing a formula (4) to adjust a signal timing scheme of the intersection so as to improve the traffic effect of the intersection. The method is advantaged in that clustering analysis is performed through a lane saturation degree of the intersection, multi-target optimization of the intersection is performed, and the traffic effect and the service level of the intersection are improved by establishing a model algorithm.

Description

technical field [0001] The invention relates to a multi-objective comprehensive optimization method for traffic passage, which is applied to the field of traffic operation management at road intersections. Background technique [0002] In recent years, the problem of traffic congestion at urban road intersections in my country has become increasingly serious. As the number of vehicles continues to rise, urban roads are increasingly congested, resulting in frequent urban road traffic accidents. Once congestion occurs on the road, it will directly reduce the operating efficiency of the road network and easily induce secondary accidents. Intersection time resource allocation, also known as intersection signal control, has an early research origin. Since the first signal light appeared in the UK in 1868, experts and scholars have gradually deepened the research on intersection signal control. With the deepening of research, the traffic background considered by many scholars ha...

AI Technical Summary

Problems solved by technology

This method considers the cyclic transformation of the guide lane to the straight-going and left-turn lanes, and realizes the signal control of the guide lane at the intersection, but it still cannot perform multi-objective comprehensive optimization.

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