基于RFID电子标签的公交信号单点优先策略

A Single Point of Transit Signal Priority Strategy Based on RFID Tag

摘要:

为加强路口单元与公交车辆的信息交互,提高公交信号优先系统的效能,以RFID电子标签为信息交互中介,建立车路通信环境,构建交通信号系统、公交系统为一体的公交信号优先系统；通过与电子标签的信息交互,路口单元对公交车的信号优先请求进行分级错开,计算信号配时、建议车速、驻站时间等控制参数,制定出基于引导的优先方案,在交叉口实现公交车的优先通行与安全行驶服务；实验结果表明,在高饱和状态下,文章引导策略能使交叉口公交的平均延误降低30%,在中、低饱和状态下的效益更佳。

Abstract:

In order to strength the information exchange between intersection unit and transit vehicle, and improve the efficiency of transit signal priority system, regarding the RFID electronic tags as information exchange intermediary, vehicle road communication environment is established, and transit signal priority system including traffic signal system and transit system as a whole is constructed. Through information exchange with electronic tags, intersection unit makes signal prior requesting of transit vehicle classification staggered, and calculates control parameters including signal timing, suggested speed, station time and so on, priority scheme based on guide is formulated, and transit vehicle priority and safety service can be achieved in intersection. Experimental results show that in high saturation state, guidance strategy in the article can make the average delay of bus in intersection reduce by 30%, and there is a better efficiency in the medium and low saturation state .