A method and device for bus priority control

Abstract

The invention discloses a public transport priority control method and device, and the method comprises the steps: obtaining a priority request of a bus; carrying out the green-light prolonging operation for a priority phase according to the green-light prolonging time of the priority phase, the rear offset time of a coordination phase and phase compression time of a compensation phase when the green-light prolonging time of the priority phase is greater than zero if the phase state of the priority phase is a green-light state; and carrying out the red-light early breaking operation for the priority phase according to the front offset time of the coordination phase when the red-light time of the priority phase is determined to meet an early breaking condition if the phase state of the priority phase is a red-light state. Because the front and rear offset time of the coordination phase is considered during the execution of the green-light prolonging operation or the red-light early breaking operation, the method can improve the public transport priority level on the basis that a green wave effect is not affected. Meanwhile, the method reduces the loss of non-priority phase time through the time compensation of the priority phase, and can effectively reduce the impact on the passing of social vehicles from the public transport priority control.

Description

technical field [0001] The embodiments of the present invention relate to the field of traffic signal control, and in particular, to a method and device for bus priority control. Background technique [0002] With the development of social economy, the urban population and the number of motor vehicles have increased significantly, and the problem of traffic congestion has become increasingly serious. Vigorously developing the public transportation system has become the only way to solve the traffic problem. In recent years, many large and medium-sized cities in China have built a multi-modal public transport system consisting of trams, Bus Rapid Transit (BRT) and ordinary public transport through a large number of infrastructure constructions, which have helped alleviate traffic congestion and improve road traffic service capabilities. Bring huge economic and social benefits. "Bus Signal Priority" is a way to realize "Bus Priority" in urban traffic. It optimizes the design ...

AI Technical Summary

Problems solved by technology

[0003] With the continuous improvement of the coverage of bus lines and the diversified development of traffic signal control strategies at intersections, the traditional bus signal priority method can no longer meet the actual needs. There is a coordination phase in the intersection scheme. In order to ensure the phase difference of the coordination phase and the green The bandwidth of the wave remains unchanged. The traditional bus priority control algorithm limits the adjustment phase of the green light extension or red light early cut-off before the coordination phase, and stipulates that the coordination phase cannot be compressed, which affects the adjustment effect

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