基于多路径可达的城市轨道交通网络客流负载均衡方法
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摘要
以乘客出行需求为导向,以路径规划为基础,提出一种城市轨道交通网络客流负载均衡方法以缓解目前大城市轨道交通网络高峰大客流拥挤.建立考虑路径拥挤度的时间阻抗函数,搜索原始拥挤路径的微差异替代路径集;以均衡网络客流分布和缓解网络供需矛盾为目标,利用运力富余的微差异替代路径动态分担拥挤路径限制区段上的OD客流量,生成客流负载均衡方案.以上海轨道交通网络中限制区段曹杨路—隆德路—江苏路为例进行方法验证.结果表明,提出的负载均衡方法能将限制区段满载率降低至85%以下且不产生新的限制区段.生成的负载均衡方案可为运营管理部门实际客流组织提供理论依据,使客流控制更有主动性、针对性和预判性.
Oriented by the demands of passengers and based on the route planning,this paper presents a load balancing method to control peak hour congestion on urban rail transit network.Firstly,the time impedance function considering route congestion was constructed to search the set of under-utilized alternative routes of the original congested route.To realize the goal of balancing the passenger flow distribution on the network and alleviating supply and demand contradiction,the load balancing scheme was generated by loading passenger flow volume to under-utilized alternative routes dynamically.A numerical example of capacitated section Caoyang Road-Longde Road-Jiangsu Road of Shanghai Metro network was conducted to verify the feasibility and validity of the proposed method.The results show that the load balancing method proposed in this paper can reduce the load factor to 85% or lower with no new capacitated section appearing.And the generated load balancing scheme can provide the theoretical basis for the actual passenger flow organization to make the passenger flow control more proactive,targeted and prejudged.
Oriented by the demands of passengers and based on the route planning,this paper presents a load balancing method to control peak hour congestion on urban rail transit network.Firstly,the time impedance function considering route congestion was constructed to search the set of under-utilized alternative routes of the original congested route.To realize the goal of balancing the passenger flow distribution on the network and alleviating supply and demand contradiction,the load balancing scheme was generated by loading passenger flow volume to under-utilized alternative routes dynamically.A numerical example of capacitated section Caoyang Road-Longde Road-Jiangsu Road of Shanghai Metro network was conducted to verify the feasibility and validity of the proposed method.The results show that the load balancing method proposed in this paper can reduce the load factor to 85% or lower with no new capacitated section appearing.And the generated load balancing scheme can provide the theoretical basis for the actual passenger flow organization to make the passenger flow control more proactive,targeted and prejudged.
引文
[1]郭建媛.城市轨道交通网络客流调控方法[D].北京:北京交通大学,2016.
[2]周玮腾.拥塞条件下城市轨道交通网络流量分配演化建模及疏导策略研究[D].北京:北京交通大学,2016.
[3]罗钦.基于网络运营的城市轨道交通客流分布理论及仿真研究[D].上海:同济大学,2009.
[4]徐瑞华,罗钦,高鹏.基于多路径的城市轨道交通网络客流分布模型及算法研究[J].铁道学报,2009,31(2):110-114.
[5]徐永实,曲思源,徐瑞华.城市轨道交通客流实时分布算法研究[J].铁道运输与经济,2017,39(5):82-87.
[6]姚向明,赵鹏,乔珂.城市轨道交通网络客流分布仿真模型研究[J].交通运输系统工程与信息,2012,12(6):52-59.
[7]赵成贵.互连网络负载平衡理论与算法[M].北京:科学出版社,2011.
[8]ABADI A,IOANNOU P A,DESSOUKY M M.Multimodal dynamic freight load balancing[J].IEEE Transactions on Intelligent Transportation Systems,2016,17(2):356-366.
[9]沈景炎.关于车辆定员与拥挤度的探析[J].都市快轨交通,2007,20(5):14-18.
[10]石俊刚,周峰,朱炜,等.基于AFC数据的城轨乘客出行路径选择比例估计方法[J].东南大学学报(自然科学版),2015,45(1):184-188.
[2]周玮腾.拥塞条件下城市轨道交通网络流量分配演化建模及疏导策略研究[D].北京:北京交通大学,2016.
[3]罗钦.基于网络运营的城市轨道交通客流分布理论及仿真研究[D].上海:同济大学,2009.
[4]徐瑞华,罗钦,高鹏.基于多路径的城市轨道交通网络客流分布模型及算法研究[J].铁道学报,2009,31(2):110-114.
[5]徐永实,曲思源,徐瑞华.城市轨道交通客流实时分布算法研究[J].铁道运输与经济,2017,39(5):82-87.
[6]姚向明,赵鹏,乔珂.城市轨道交通网络客流分布仿真模型研究[J].交通运输系统工程与信息,2012,12(6):52-59.
[7]赵成贵.互连网络负载平衡理论与算法[M].北京:科学出版社,2011.
[8]ABADI A,IOANNOU P A,DESSOUKY M M.Multimodal dynamic freight load balancing[J].IEEE Transactions on Intelligent Transportation Systems,2016,17(2):356-366.
[9]沈景炎.关于车辆定员与拥挤度的探析[J].都市快轨交通,2007,20(5):14-18.
[10]石俊刚,周峰,朱炜,等.基于AFC数据的城轨乘客出行路径选择比例估计方法[J].东南大学学报(自然科学版),2015,45(1):184-188.