协同环境下动态公交车速引导模型及信号控制调整分析

Analysis of Dynamic Bus Speed Guidance Model and Signal Control Adjustment in a Collaborative Environment

随着无线通讯技术以及传感器探测技术的进步,依托车载智能系统与路侧设备通信技术,指导公交车驾驶员精准控制车速,从而为公交车实现车速控制与信号同步协调成为了当前研究的重点问题之一。基于此文章以车速引导的公交信号优先控制理论为基础,构建了适应车路环境的动态速度引导下的公交优先协调控制模型。并通过定义主干道路公交车速及车流量数据,利用VISSIM仿真软件对某道路进行车辆动态协调调度,结果表明提出的车速引导模型与传统绿波控制方法相比,能够大大公交车辆的停车次数减少公交车行驶过程中停车次数及延误时间,同时降低了乘客的人均延误时间。

With the advancements in wireless communication technology and sensor detection technology,relying on vehicle-mounted intelligent systems and roadside equipment communication technology,guiding bus drivers to accurately control vehicle speed has become one of the key research issues for achieving speed control and signal synchronization coordination for buses.Based on this,this paper constructs a bus priority coordinated control model under dynamic speed guidance adapted to the vehicle-road environment,based on the theory of bus signal priority control with speed guidance.By defining the bus speed and traffic flow data on the main road,the VISSIM simulation software is used to perform dynamic coordinated scheduling of vehicles on a certain road.The results show that the proposed speed guidance model,compared with traditional green wave control methods,can significantly reduce the number of bus stops during bus travel,shorten the delay time,and also reduce the average delay time per passenger.