Comprehensive Evaluation for Urban Rail Transit Network Based on TOPSIS Model

2014 ◽  
Vol 587-589 ◽  
pp. 1862-1866
Author(s):  
Ying Wang ◽  
Kuan Min Chen
Keyword(s):  
Decision Making ◽  
Evaluation System ◽  
Expert Knowledge ◽  
Comprehensive Evaluation ◽  
Urban Rail Transit ◽  
Rail Transit ◽  
Index Set ◽  
Transit Network ◽  
Urban Rail ◽  
Urban Rail Transit Network

A comprehensive evaluation system was proposed in terms of operational effect, network structure, social benefits, strategic development and implementation. The indicators layer was taken as the index set, and the network programs were taken as the domain set to establish the original decision-making matrix. The comprehensive weights of the indexes were determined by the AHP and Entropy Method, with giving full consideration to the expert knowledge and experience, as well as data itself implies. Also, the weighted normalized decision-making was constructed. The positive and negative ideals were determined based on the TOPSIS, the pros and cons of the line networks were determined by calculating the degree of closeness of the programs to the negative ideal solution. This method was applied to Xi’an urban rail transit network planning. The result shows that this method has a better application prospect for its simple calculation and scientific decision.

Research on Group Decision-Making Optimization Model of Urban Railway Traffic Network Scheme

2011 ◽  
Vol 228-229 ◽  
pp. 519-525
Author(s):  
Hong Yan Yan ◽  
Fei Lian Zhang
Keyword(s):  
Decision Making ◽  
Group Decision Making ◽  
Group Decision ◽  
Urban Rail Transit ◽  
Rail Transit ◽  
Transit Network ◽  
Attribute Weights ◽  
Railway Traffic ◽  
Urban Rail ◽  
Urban Rail Transit Network

Aiming at the evaluation and optimization of urban rail transit network scheme, the optimization decision-making model based on group TOPSIS was advanced in this paper. The multi-attribute evaluation index system of urban rail transit network was established. Then the decision-making’s position matrix and the attribute weights were determined using the idea of group decision-making on the basis that group rationality was guaranteed , which aimed at the phenomenon that preference of decision-making existed and the reduction of decision-maker’s preference had influence on the result of decision-making. The network scheme was ranked based on TOPSIS method to arrive at a decision. The example in this paper has verified the effectiveness and practicability of the model.

Research on Hyperpaths in the Urban Rail Transit Network

2014 ◽  
Vol 488-489 ◽  
pp. 1439-1443
Author(s):  
Jin Hai Li ◽  
Jian Feng Liu
Keyword(s):  
Large Scale ◽  
Urban Rail Transit ◽  
Rail Transit ◽  
Transit Network ◽  
Travel Costs ◽  
Urban Rail ◽  
Distinctive Structure ◽  
Feasible Path ◽  
Definition Of ◽  
Urban Rail Transit Network

Hyperpaths enumeration is one of the basic procedures in many traffic planning issues. As a result of its distinctive structure, hyperpaths in Urban Rail Transit Network (URTN) are different from those in road network. Typically, one may never visit a station more than once and would never transfer from one line to another that has been visited in a loopless URTN, meaning that stations a hyperpath traversed cannot be repeated, neither do lines in loopless networks. This paper studies the relationships between feasible path and the shortest path in terms of travel costs. In this paper, a new definition of hyperpath in URTN is proposed and a new algorithm based on the breadth first searching (BFS) method is presented to enumerate the hyperpaths. The algorithm can safely avoid hyperpath omission and can even be applied in networks containing loops as well. The influence of parameters on hyperpaths is studied by experimentally finding hyperpaths in the subway network in Beijing. A group of suggested parameter pairs are then given. Finally, a numerical experiment is used to illustrate the validity of the proposed algorithm. The results imply the significance of the convergence of the BFS algorithm which can be used to search hyperpaths in large scale URTN even with loop.

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.

Sign in / Sign up

Export Citation Format

Share Document