摘要 为进一步提升城市交叉口的交通控制效率,提出在交叉口设置预信号,利用预信号双停车线间的待行区域,对交叉口进口道处的交通流重新组织分配。该方法能提升交叉口进口道的空间资源利用效率,减少车辆延误,基于此,以社会车辆为研究对象,考虑将不同流向的车辆在交叉口处进行分流,将车道分布与待行区长度计算相结合,通过对比不同进口道布设形式下车辆换道产生的无效面积,选择效率最高的预信号停车线布设形式,并根据车辆换道行为,优化待行区长度计算模型。最后,运用Vissim进行仿真验证,通过对比预信号设置前后及预信号停车线优化前后交叉口通过的车辆数、车辆延误、行程时间、停车次数等指标,验证提出的预信号停车线设置方法的有效性。 In order to further improve the traffic control efficiency of urban intersections,it proposes to set the pre-signals at intersections.Using the waiting area between pre-signal double stop lines to reorganize and allocate the traffic flow at the entrance of the intersection can improve the utilization efficiency of the space resource at the entrance of the intersection and reduce vehicle delays.based on this,taking the social vehicle as the research object,this paper presents different moving vehicles in the intersection of shunt,by distributing the driveway combined with line length calculation,comparing the different lane’s changing layout form of invalid area,choosing the most efficient pre-signal,and optimizing the model of waiting area length calculation according to the lane-changing of vehicles.Finally,Vissim is used for simulation verification.By comparing with the number of vehicles,vehicle delays,travel time,number of stops and other indicators at the intersection before and after the pre-signal setting and the pre-signal stop line optimization,this paper verifies the effectiveness of the pre-signal stop line setting method.
出处 《交通科技与经济》 2021年第3期35-41,共7页 Technology & Economy in Areas of Communications
基金 国家自然科学基金项目(71871027) 陕西省自然科学基础研究计划项目(2016JM5063) 住房和城乡建设部科学技术计划项目(2016-K2-033)。
