摘要
针对高峰时间客流量大、换乘站客流风险突出的情况,从能力匹配角度研究了城市轨道交通网络运输组织协调方法.分析了站台客流的变化规律,确定了列车疏解能力、候车客流需求、站台最大聚集人数的计算方法.提出了运力协调度的概念,用以描述客流需求与各线运输能力的匹配程度.以换乘站整体的运力协调度最优为目标,以首班列车发车时刻和列车运行间隔为决策变量,以保证站内客流安全为主要约束,建立了列车运行计划协同优化的非线性整数规划模型,并采用遗传算法求解.对某两线相交网络进行算例分析表明:采用运力协调方案后,列车开行总数仅增加1列,留乘人数减少了68.44%,运力协调度更接近1,大客流方向站台的最大聚集人数分别降低11.77%与19.68%,各方向的运能供给更好地适应客流需求,可有效提高乘客和运营企业双方的利益.
In viewof big passenger flowvolume and high passenger risk at transfer stations during the peak period,this paper studied the coordination method for urban rail transit network transportation organization from the perspective of capability matching. The change rules of passenger flowwere analyzed,and the calculation methods for train evacuation capacity,waiting passenger demand and the largest number of people gathered on the platform were determined. The concept of capacity coordination degree（ CCD） was proposed used to describe the matching degree between the traffic demand and the transport capacity of each line. Based on this,taking the optimal comprehensive CCD of the transfer station as the goal,the first train departure time and train running interval as decision variables,and the guarantee of passenger safety at the station as the main constraint,a nonlinear integer programming model of train operation plans collaborative optimization was established,and the genetic algorithm was designed. A case study of a two-line intersecting network was carried out. The results showthat,after the use of capacity coordination scheme,the total number of trains only increases by 1,the remaining passengers reduce by 68. 44%,comprehensive CCD is closer to1,and the largest number of people gathered in big passenger flowdirections decrease by 11. 77%and 19. 68%,respectively. The transport supply can better meet the passenger demands in all directions,thus improving the interests of both passengers and operating companies.
出处
《东南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2017年第5期1048-1054,共7页
Journal of Southeast University：Natural Science Edition
基金
国家自然科学基金资助项目(61473210)
关键词
城市轨道交通
列车运行计划
运力协调
整数规划
遗传算法
urban rail transit
train operation plan
transport capacity coordination
integer programming
genetic algorithm
