Multiple-intersection traffic signal optimization control method and multiple-intersection traffic signal optimization control device

Abstract

The application discloses a multiple-intersection traffic signal optimization control method, which comprises the following steps: firstly, determining key intersections in a regional road network and the priority of each main line corresponding to each key intersection; establishing a traffic signal control mathematic model of the regional road network according to the bus traffic priority principle; then performing iterative refinement on the phase difference between the intersection on each main line in the traffic signal control mathematic model and the adjacent intersection of each main line by adopting a fundamental particle swarm, thereby obtaining a globally optimal solution in the fundamental particle swarm; by utilizing the globally optimal solution as an initial value of the upper-layer coordinated particle swarm, performing refinement on an upper-layer coordinated particle swarm according to the initial value; and acquiring the optimal value of the phase difference between the intersection on each main line in the traffic signal control mathematic model and the adjacent intersection of each main line, thereby controlling the traffic signals. Therefore, the application is capable of not only realizing coordinated control of signals among the intersections in the regional road network, but also realizing the bus traffic priority and thus relieving the traffic jam situations.

Description

technical field [0001] The invention relates to the field of traffic signal control, in particular to a multi-intersection traffic signal control method and device. Background technique [0002] With the development of social economy, the problem of urban traffic congestion is becoming more and more serious. The traffic system is a typical complex system, which is composed of various intersections and arterial roads. congestion situation. [0003] However, in the prior art, when controlling the traffic information at the intersection, the priority of the bus is not considered, so that when the bus runs in the regional road network, the traffic efficiency will be affected because the bus often encounters red lights. Contents of the invention [0004] In view of this, the present invention provides a multi-intersection traffic signal optimization control method and device, which solves the problem in the prior art that the priority of public transport is not considered when...

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Problems solved by technology

[0004] In view of this, the present invention provides a multi-intersection traffic signal optimization control method and device, which solves the problem in the prior art that the priority of public transport is not considered when the signals of multi-intersections are coordinated, thereby improving Improve the efficiency of public transportation and reduce the problem of traffic congestion

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