Real-time headway headway equalization control method and system based on bus signal priority

Abstract

The invention discloses a bus signal priority-based real-time time headway equalization control method and system. Aiming at the problems that bus time headway is not equalized on priority of an individual bus caused by a bus priority signal to further cause that buses arrive in a bunch way, factors such as vehicle delay, a priority strategy, a rod network system running efficiency and passenger waiting time are comprehensively considered, a real-time bus signal priority control model is built, the time headway of a bus is equalized, the problem of bus congestion is solved, and the passenger waiting time is reduced. On one hand, the fluctuation influence of traditional bus signal priority on bus time headway is solved; and on the other hand, relatively a few parameters are involved and areeasy to acquire, a complicated algorithm and optimization process are not needed, high practicability is achieved, the running efficiency of an urban bus system can be substantially improved, and thepassenger satisfaction is improved. The invention also discloses a bus signal priority-based real-time time headway equalization control system.

Description

technical field [0001] The invention relates to the field of traffic management and control, in particular to a real-time headway equalization control method and system with bus signal priority. Background technique [0002] The main sources of bus delays on urban roads are signalized intersections and dwell times in stations. The bus signal priority control strategy gives priority to the buses passing through the signalized intersection, so as to reduce the waiting time of the bus vehicles at the intersection. On the other hand, the dwell time of a bus service depends on the number of passengers getting on and off, once the bus is behind schedule due to external disturbances, it has the potential to serve more passengers and prolong the dwell time; When the car arrives earlier than the scheduled time, the number of passengers waiting for the bus will decrease, and the time spent in the station will be reduced. Therefore, due to the interference of several situations, the ...

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Problems solved by technology

Therefore, due to the interference of several situations, the bus system deviates from the balanced headway, and then forms the problem of bunching arrival of buses, which has an adverse impact on passengers and the operation of the bus system

[0003] In the existing research, because the bus signal priority method aimed at reducing bus delays usually has high and low priority ranges for buses, the instability of the headway increases significantly

According to the generation mechanism of the bus bunching problem, the large disturbance of the headway after the signal priority control will increase the risk of the vehicle bunching problem

However, the research on alleviating the problem of bus bunching ignores the consideration of bus priority authority, which reduces the operating efficiency of the entire road network system.

Obviously, it is difficult to strike a balance between the solutions of the two problems

[0004] Therefore, the existing bus priority control methods cannot well solve the headway disturbance caused by signal priority and aggravate the problem of bunching of buses.

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