基于导向车道实时利用率的单点全感应式信号控制方法  

Fully-actuated Signal Control at Isolated Intersections Based on Real-time Utilization Rate of Approach Lanes

作　　者：安娜 徐洪峰[1] AN Na;XU Hong-feng(School of Transportation and Logistics,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]大连理工大学交通运输学院,辽宁大连116024

出　　处：《工业技术创新》2020年第3期61-65,共5页Industrial Technology Innovation

摘　　要：为了提高道路交叉口信号控制的性能,以典型的四路交叉口为研究对象,针对传统的单点全感应式信号控制方法无法充分利用绿灯时间特别是绿灯延长时间的问题,提出一种基于导向车道实时利用率的单点全感应式信号控制方法。利用Python调用VISSIM的COM接口,模拟多目标跟踪雷达检测器,采集交叉口各条导向车道内的机动车运行状态数据。从道路空间利用情况的角度出发,定义导向车道实时利用率概念,并在此基础上设计感应控制逻辑。仿真实验表明,在高负荷交通需求下,与传统基于车辆时距的控制方法相比,采用基于导向车道实时利用率的单点全感应式信号控制方法,交叉口车均停车次数通常小于1次,交叉口车均延误降幅超过10个百分点,交叉口通行能力明显提高。In order to improve the performance of the signal control on the road intersection, taking the typical four-leg intersection as the research object, aiming at the problem that the traditional fullyactuated signal control at isolated intersections cannot make full use of the green time(especially the green extension time), a fully-actuated signal control at isolated intersections based on the real-time utilization rate of approach lanes is proposed. Using Python to invoke the COM interface of VISSIM, the multi-target tracking radar detector is simulated, and the vehicle running state data in each approach lane the intersection are collected. From the perspective of road space utilization, the concept of real-time utilization rate of approach lanes is defined, and the actuated control logic is designed on such a basis. The simulation show that under the high-load traffic demand, compared with the traditional control method based on passage time, the fully-actuated signal control at isolated intersections based on the real-time utilization rate of approach lanes is adopted. The average number of stops at the intersection is usually less than once, the average vehicle delay at the intersection is reduced by more than 10 percentage points, and the traffic capacity of the intersection is significantly improved.

关 键 词：单点全感应式信号控制 导向车道实时利用率 绿灯时间 Python 多目标跟踪雷达检测器 车均停车次数 车均延误 

分 类 号：U491[交通运输工程—交通运输规划与管理]