摘要
为了充分考虑行人过街对地铁站等大型公共设施邻近交叉口公交优先信号控制的影响,解决传统公交优先信号控制方法未考虑行人过街延误,造成行人滞留交叉口时间过长影响交通的问题,提出了综合考虑行人过街、公交车辆和社会车辆乘客延误情况的优先控制方法。根据人流和车流情况将交叉口交通状态分为人多车多、人多车少、人少车多和人少车少4种不同状态。针对前3类交通状态分别建立以道路通行能力最大化和公交乘客、社会车辆乘客以及过街行人延误变化最优化为目标的双层规划模型和以交叉口延误变化效益最大化为目标的多目标规划模型,并利用遗传算法进行求解。通过实测数据对比了采用该方法前、后公交乘客延误、社会车辆乘客延误、行人过街延误的变化情况。研究结果表明:该方法能在少量增加公交乘客和社会车辆乘客延误的情况下,大幅减少过街行人延误;相较于传统公交优先信号控制方法,在人多车多时采用该方法行人延误可减少59%,人多车少时行人延误可减少41%,人少车多时行人延误可减少195%;实测结果验证了该方法的有效性,其更具公平性并更符合实际,能够获得最大延误效益。
In order to take into full account the influence of pedestrian crossing on signal control for bus priority at intersections near large-scale public facilities such as subway stations and solve problems that the delay of pedestrian crossing was not considered in the traditional signal control method for bus priority（SCMBP）resulting in long resistance time of pedestrians,a novel priority control method was proposed in consideration of the delay of pedestrian crossing,bus,and users of private vehicles at intersections.Four scenarios were categorized based on the flow of pedestrians and private vehicles,that is,high pedestrian volume and traffic volume,high pedestrian volume and low traffic volume,low pedestrian volume and traffic volume as well aslow pedestrian volume and high traffic volume.By virtue of the first three scenarios,a bi-level programming model was established to maximize the road capacity and to optimize the delay of bus passengers,social vehicle users,and crossing pedestrians.Meanwhile,a multi-objective programming model with the purpose of maximizing the benefit of all road users at an intersection was established.The genetic algorithm was used to solve the two programming models.Moreover,the delay of bus passengers,private vehicle users,and pedestrians before and after adopting the proposed method were compared.The results show that the delay of crossing pedestrian can be greatly reduced with a slight increase in the delay of bus passengers and users of social vehicles.Compared with the traditional SCMBP,the pedestrian＇s delay may decrease by 59% at the state of high pedestrian volume and traffic volume,in the light of this method.At the state of high pedestrian volume and low traffic volume,the pedestrian delay decreases by 41% and at the state of low pedestrian volume and high traffic volume it decreases by 195%.It proves that the SCMBP considering pedestrian crossing is efficient,fair and practical,with the maximum benefit.
作者
刘昱岗
李佳励
李俊博
杨鸿泰
李明
LIU Yu-gang LI Jia-li LI Jun-bo YANG Hong-tai LI Ming(School of Transportation and Logistics, Southwest Jiaotong University, Chengdu 610031, Sichuan, China National United Engineering Laboratory of Integrated and Intelligent Transportation, Southwest Jiaotong University, Chengdu 610031, Sichuan, China)
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
2017年第7期110-118,共9页
China Journal of Highway and Transport
基金
国家自然科学基金项目(51675451
51574201)
四川省软科学研究计划项目(2015ZR0120)
关键词
交通工程
公交优先信号控制
双层规划
多目标规划
行人过街
延误
traffic engineering
SCMBP
bi-level programming
multi-objective programming
pedestrian crossing
delay
