Single road intersection traffic signal control method based on real-time traffic information

Abstract

The invention discloses a single road intersection traffic signal control method based on real-time traffic information. The single road intersection traffic signal control method comprises the steps of: establishing a single road intersection traffic signal safety control mathematical model based on real-time traffic information; solving the mathematical model by adopting a self-adaptive timing algorithm based on real-time traffic information; setting green-light release shortest time, green-light release longest time and green-light release time in saturated traffic flow respectively through terms and marks, decision variable and objective functions; judging whether a safety accident occurs in multiple lanes; and judging the queuing length of a current phase position. On the basis of establishing the single road intersection traffic signal safety control mathematical model based on real-time traffic information, the single road intersection traffic signal control method based on real-time traffic information adopts the self-adaptive timing algorithm for controlling the intersection according to real-time vehicle queuing length and traffic safety state, and achieves dynamic optimization timing of single road intersection traffic signals on the premise of ensuring traffic safety.

Description

technical field [0001] The invention belongs to the field of intelligent transportation, and in particular relates to a single intersection traffic signal control method based on real-time traffic information. Background technique [0002] With the acceleration of urbanization and the increasing popularity of motor vehicles, people are also facing the confusion of traffic congestion while enjoying the great convenience brought by motor vehicles. Obviously, the direct way to solve traffic congestion is to build more roads and bridges to increase the traffic capacity of the road network. However, the huge amount of money required to build roads and bridges and the strict constraints on urban space make this approach less effective. Therefore, under the existing road conditions, improving the level of traffic control and management, rationally using existing traffic facilities, and giving full play to their capabilities are one of the effective ways to solve traffic problems. ...

AI Technical Summary

Problems solved by technology

However, the current traffic signal controller generally adopts a fixed timing scheme (Zheng Rong. Development and realization of multi-phase traffic signal controller based on ARM7 [D]. Shanghai Jiaotong University, 2009), which cannot meet the real-time changes of traffic flow at intersections Case

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