摘要
对快速路入口匝道交通系统控制算法进行了分析研究,并提出了入口匝道调节率控制方程的主要控制参数确定方法,对北京市西二环快速路的部分交通数据进行了交通流特性分析,利用PTV Vissim交通仿真软件的VisVAP程序语言实现入口匝道自适应控制,仿真数据结果表明,对入口匝道采用自适应控制后相对于无信号控制的占有率下降11.11%,交通量提升5.37%,行程时间降低16.78%,快速路交通系统的交通运行状况得到了有效改善。
The paper analyzes the control algorithm of the entrance ramp traffic system,and proposes the main control parameter determination method of the entrance ramp regulation rate control equation,then analyzes the traffic flow characteristics of some traffic data of Beijing West Second Ring Expressway.The VisVAP programming language of PTV Vissim traffic simulation software is used to realize the adaptive control of the entrance ramp.The simulation data show that the share of adaptive control relative to no signal control decreased by 11.11%,the traffic volume increased by 5.37%,the travel time decreased by 16.78%,and the traffic health of the express road traffic system is improved effectively.
作者
左小莉
王景升
ZUO Xiaoli;WANG Jingsheng(People,s Public Security University of China,Beijing 100038 China)
关键词
快速路
交通流
匝道控制
交通仿真
自适应控制
expressway
traffic flow
ramp metering
traffic simulation
adaptive control
