Priority control method for bus signal based on green light demand

Abstract

The invention discloses a priority control method for a bus signal based on the green light demand, which aims at overcoming the defects in the existing priority control method for the bus signal that the arriving of a plurality of buses from different directions is not considered, and the interest balance between the buses and common motor vehicles, between the buses and pedestrians as well as between the buses and non-motor vehicles is not considered. According to the method, firstly, the situations of arriving, waiting and the like of vehicles are detected so as to generate a bus priority request; based on the condition, the green light holding degree at a green light phase and the green light demand at multiple red light phases are calculated through the combination of real-time traffic flow information, the real-time bus arriving information and the like; the green light holding degree and the greatest green light demand are compared to determine that whether the phases need to be switched; if the green light holding degree is more than or equal to the greatest green light demand, the current green light phase is continuously released; and the next phase is switched if not. The next phase can be a next phase in the fixed phase sequence circulation and also can be a phase of the greatest green light demand in the three red light phases with variable phase sequence.

Description

technical field [0001] The invention relates to traffic signal control technology, in particular to a method for priority control of public traffic signals based on green light demand degree. Background technique [0002] With the development of the economy and the continuous expansion of the city scale, the contradiction between the demand and supply of urban traffic becomes more and more prominent, and the problems of traffic congestion and environmental pollution become more and more serious. Prioritizing the development of public transport has become one of the strategic choices for countries all over the world to deal with traffic congestion. [0003] Intersection bus priority technology mainly includes two aspects, that is, priority in space and time. Space priority refers to the setting of dedicated entrance lanes for buses, etc.; time priority is achieved through priority control of bus signals. Bus signal priority can be divided into passive priority, active prior...

AI Technical Summary

Problems solved by technology

[0005] Considering and researching on the above problems, the present invention proposes a bus signal priority control method based on green light demand to specifically solve the practical problem of multi-directional and multi-vehicle simultaneous arrival in bus signal priority

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