摘要
采用理论分析结合Vissim软件仿真的手段,提出单口放行方法具有采用左转直行自适应车道、适合不对称交通流、容易变道以及简单易操作的4个优点。分析了该方法在左转非机动车与直行机动车相冲突和相位损失方面的缺陷,计算了延误,并总结了单口放行方法的适用性条件。最后,以株洲市某路口为例,对比分析了采用传统的4相位和单口放行两种方法设计时交叉口的各项评价指标。研究表明,设计恰当的单口放行配时方法能大大减少交叉口的延误,提高路网里车辆的行程车速和总行程时间。
Combined theoretical analysis with Vissim software simulation,the method of each phase for an entrance were proposed.The method has advantages of using the adaptive lane for left-turning and straight traffic flow,being appropriate for the asymmetric traffic flow,and making lane changing more convenient and easier operation.The disadvantages of this method that bring the conflict between the left-turning non-motorized vehicles and straight through vehicles and making phase loss were also analyzed.The delays were calculated and the suitable conditions of each phase for a single channel design were summarized as well. Finally,taken an intersection in Zhuzhou city as an example,all evaluation indicators of the intersection designed by traditional four-phase method and each phase for an entrance were compared and analyzed.It shows that the method of the each phase for an entrance with a proper design could significantly reduce delays at intersection and total travel time,and improve the speeds of vehicles in the traffic network.
出处
《公路交通科技》
CAS
CSCD
北大核心
2010年第8期87-90,95,共5页
Journal of Highway and Transportation Research and Development
基金
国家自然科学基金资助项目(70871092)
上海市青年科技启明星计划资助项目(09QA1406200)
关键词
交通工程
相位设计
VISSIM仿真
单口放行
自适应车道
相位损失
traffic engineering
phase design
Vissim software simulation
each phase for an entrance
adaptive lane
phase loss
