摘要
本文针对交叉口采用韦伯斯特单点信号配时确定系统周期时长;再采用数解法优化相位差,根据调查所得的平均速度和系统周期时长得到初步的vC/2,以10m为单位分别向前向后枚举10个步距,寻找最合适的相位差使得绿波带宽尽可能达到最大;最后使用VISSIM交通仿真软件进行仿真,通过对比发现进行协调配时后交叉口效益明显提升,说明该协调控制方案能提高交叉口运行效率。本文以期为城市交通发展方向提供数据支持。
This paper uses Webster's method for single-point signal timing to obtain an optimized timing plan,and determine the system cycle time;then use the numerical solution method to optimize the phase difference,and obtain a preliminary vC/2 based on the average speed and system cycle time obtained from the survey.Using 10m as the unit to enumerate 10 steps forwards and backwards to find the most suitable phase difference;finally use VISSIM traffic simulation software to simulate,Through comparison,it is found that the number of stops,queuing length and delays have all decreased after coordinated time allocation,indicating that the coordinated control scheme can improve the operation efficiency of the intersection.
作者
王迎
雷海燕
WANG Ying;LEI Hai-yan(School of Civil Engineering,Tianjin Chengjian University,Tianjin 300384,China;Tianjin University Urban Planning and Design Institute Co.,Ltd.,Tianjin 300073,China)
出处
《价值工程》
2021年第30期179-181,共3页
Value Engineering
基金
天津市哲学社会科学规划项目支持,项目编号TJGL16-014Q。
关键词
交通工程
信号协调配时
数解法
交叉口
traffic engineering
signal coordinated timing
algebraic method
intersection
