Modified stochastic user-equilibrium assignment algorithm for urban rail transit under network operation

2013 ◽  
Vol 20 (10) ◽  
pp. 2897-2904 ◽  
Author(s):  
Wei Zhu ◽  
Hao Hu ◽  
Rui-hua Xu ◽  
Ling Hong
Keyword(s):  
User Equilibrium ◽  
Urban Rail Transit ◽  
Rail Transit ◽  
Stochastic User Equilibrium ◽  
Assignment Algorithm ◽  
Urban Rail ◽  
Equilibrium Assignment ◽  
Network Operation

scholarly journals Dynamic Schedule-Based Assignment Model for Urban Rail Transit Network with Capacity Constraints

2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
Baoming Han ◽  
Weiteng Zhou ◽  
Dewei Li ◽  
Haodong Yin
Keyword(s):  
User Equilibrium ◽  
Capacity Constraints ◽  
Urban Rail Transit ◽  
Rail Transit ◽  
Stochastic User Equilibrium ◽  
Temporal And Spatial Distribution ◽  
Transit Network ◽  
Passenger Flow ◽  
Assignment Model ◽  
Urban Rail

There is a great need for estimation of passenger flow temporal and spatial distribution in urban rail transit network. The literature review indicates that passenger flow assignment models considering capacity constraints with overload delay factor for in-vehicle crowding are limited in schedule-based network. This paper proposes a stochastic user equilibrium model for solving the assignment problem in a schedule-based rail transit network with considering capacity constraint. As splitting the origin-destination demands into the developed schedule expanded network with time-space paths, the model transformed into a dynamic schedule-based assignment model. The stochastic user equilibrium conditions can be equivalent to the equilibrium passenger overload delay with crowding penalty in the transit network. The proposal model can estimate the path choice probability according to the equilibrium condition when passengers minimize their perceptive cost in a schedule-based network. Numerical example in Beijing urban rail transit (BURT) network is used to demonstrate the performance of the model and estimate the passenger flow temporal and spatial distribution more reasonably and dynamically with train capacity constraints.

Safety Assessment Method for Equipment of Urban Rail Transit Network Operation

2014 ◽  
Vol 513-517 ◽  
pp. 3958-3963 ◽  
Author(s):  
Bo Gao ◽  
Ling Xi Zhu ◽  
Xue Mei Xiao
Keyword(s):  
Safety Assessment ◽  
Spatial Information ◽  
Urban Rail Transit ◽  
Assessment Model ◽  
Rail Transit ◽  
Source Information ◽  
Transit Network ◽  
Urban Rail ◽  
Network Operation ◽  
Urban Rail Transit Network

Based on the multi-source information fusion and complex network theory, through studying the effective matching and integration of safety equipment and spatial information of urban rail transit network operation, a safety assessment model is proposed: through equipment fusion and the node fusion, the global safety parameter is obtained, which is accurate in description and evaluation of urban rail transit operating than the partial safety factors and realize the transform from microscopic description to macroscopic description.

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