Timing method for traffic signal lamps

Abstract

The invention provides a timing method for traffic signal lamps, and belongs to the field of transportation ../../../Program Files/Youdao/Dict/7.5.2.0/resultui/dict/ keyword=facilities. The method comprises the following steps: conducting single-crossroad signal lamps timing for the crossroad in case of only one crossroad; conducting single-crossroad signal lamps timing for each crossroad if the distance between two adjacent crossroads is greater than 800 meters; conducting signal lamps timing for the two adjacent crossroads if the distance between two adjacent crossroads is less than or equalto 800 meters; and conducting signal lamps timing for the four crossroads if a crossroad is adjacent to four crossroads. The timing method for traffic signal lamps applies a real-time elastic scheduling strategy to the crossroad signal timing for different lane saturations, and constructs the timing model for a variety of crossroads, solves a corresponding optimal analytical solution, and designsan optimal green lamp timing for each phase, so as to fundamentally relieve traffic pressure.

Description

technical field [0001] The invention belongs to the field of traffic equipment, and in particular relates to a traffic signal light timing method. Background technique [0002] In recent years, the economic and social development has entered a stable stage from rapid, and people's quality of life has been greatly improved. More and more people own private cars, and the growth of motor vehicles has also entered a peak period. The obstruction seriously restricted the development of social economy. Good urban traffic is an important guarantee for reducing traffic hazards, promoting social and economic development, and improving citizens' living standards. [0003] There are many causes of urban traffic congestion. Among them, the control of traffic lights on the road has not been properly optimized, resulting in the coexistence of waste of traffic resources and traffic congestion. Alleviating the increasingly prominent traffic pressure and solving the problem of traffic conge...

AI Technical Summary

Problems solved by technology

Signal optimization timing technology can be divided into single-point control, trunk line control and regional coordinated control methods. Among them, single-point control is the current mainstream control method, but it cannot meet the optimization performance requirements (more than 99% of intersections in my country are still single-point control); trunk line control It is mostly used on the main roads between two cities, and the implementation requirements are high; regional coordinated control takes into account the traffic capacity of a single intersection, and also considers the relevance of multiple intersections. It is an effective tool to maximize the traffic capacity of the road network

[0013] The main contradictions in signal timing are: (1) the contradiction between oversaturated traffic flow and finite signal period; (2) the contradiction between multi-phase traffic demand with differential traffic flow and limited single signal cycle time allocation

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