摘要
提出了受空间制约的快速路下匝道衔接段优化设计与控制的思路,即通过计算允许排队长度与绿灯时间关系,对相邻交叉口采用半感应控制方式,保证了衔接段的车流交织长度。分析了绿灯时间参数的确定方法和交叉口半感应控制流程。通过Vissim软件仿真进一步说明了方案的有效性。同时还指出,在空间严重受制的情况下,交织段可采用类似于交叉口的信号控制方式。
The method of optimal design and control of joint section with restricted space of expressway off-ramp is presented in this paper. The paper analyzes the relationship of queue length and effective green time. The parameter of semi-actuated signal control is recommended ,at adjacent intersection and the control procedure is analyzed to make sure the length of weaving area. At last, the method is proved to be effective by the simulation of Vissim. At the same time, the signal control in the weaving area at the situation with serious restricted space is mentioned.
出处
《交通信息与安全》
2010年第1期67-70,共4页
Journal of Transport Information and Safety
关键词
快速路
衔接段
半感应信号控制
排队长度
交织
expressway
joint section
semi-actuated signal control
queue length
weaving
