The Vulnerability Analysis of Subway System

2014 ◽  
Vol 641-642 ◽  
pp. 741-744
Author(s):  
Qing Lin ◽  
Shou Xin Song
Keyword(s):  
Rapid Development ◽  
Vulnerability Analysis ◽  
Rail Transportation ◽  
Urban Rail ◽  
Subway System

In order to ease the tremendous pressure of traffic caused by the rapid development of urbanization, the rapid development of urban rail transportation is of great significance. This paper will explain what is vulnerability of subway system, and the meaning of doing this research. Meanwhile, it also includes to analyze factors which influencing the vulnerability.

Passenger Boarding/Alighting Management in Urban Rail Transportation

2012 ◽  
Author(s):  
Sonia Baee ◽  
Farshad Eshghi ◽  
S. Mehdi Hashemi ◽  
Rayehe Moienfar
Keyword(s):  
Travel Time ◽  
System Performance ◽  
Heavy Traffic ◽  
System Capacity ◽  
Rapid Decline ◽  
Rail Transportation ◽  
Satisfaction Level ◽  
Urban Rail ◽  
Subway System ◽  
Measures Of Performance

Heavy traffic consequences in crowded cities can be extremely reduced by using mass transportation. Recent extensive studies on Tehran subway system, as a representative of crowded cities, show that ever increasing commutation demand results in rapid decline in service quality and satisfaction level, system capacity wastage, and poorer system performance. Since passenger boarding/alighting period is noticeable compared to the inter-station travel time, it seems that passenger boarding/alighting management would play a significant role in system performance improvement. Aiming at increasing satisfaction level and service success rate, while reducing travel time, different boarding/alighting strategies are proposed. Passengers behaviors are carefully simulated based on a microscopic model, through introducing an inclination function which governs a passengers movement in a two-dimensional queue. Simulation results, in terms of three aforementioned measures of performance, show that in less crowded stations, the first strategy, expectedly, outperforms the other two. However, in crowded stations (e.g. interchange stations) the third strategy outperforms the others significantly.

scholarly journals Overview of Anti-Seismic Researches of Underground Structures

2018 ◽  
Vol 38 ◽  
pp. 03038
Author(s):  
Ran Liao
Keyword(s):  
Research Methods ◽  
Underground Structure ◽  
Seismic Damage ◽  
Urban Rail Transit ◽  
Rail Transit ◽  
Underground Structures ◽  
Transit System ◽  
Urban Rail ◽  
Subway System ◽  
Metro System

With the vigorous development of urban rail transit system, especially the construction of subway system, the safety of subway system draws more and more attention. The study of anti-seismic for underground structures has also become an important problem to be solved in the construction of Metro system. Based on the typical underground structure seismic damage phenomenon, this paper summarizes the seismic characteristics, research methods and design methods of underground structures to offer a guide for engineers.

Discovering the evolution of Beijing Rail Network in fifty years

2020 ◽  
Vol 34 (21) ◽  
pp. 2050212
Author(s):  
Zijia Wang ◽  
Jingqi Li ◽  
Liping Huang ◽  
Zhigang Yang
Keyword(s):  
Pearson Correlation ◽  
Service Level ◽  
Urban Rail Transit ◽  
Transit Network ◽  
Rail Network ◽  
Topological Evolution ◽  
Topological Network ◽  
Urban Rail ◽  
Subway System ◽  
One Year

Urban rail transit (URT) system plays a significant role in daily commuting. The main features of URT could be abstracted into two kinds of networks, topological network and transit network. The correlation between topological network and transit network could represent the service level of transportation which is also a main focus to some extent. In this study, static analysis based on one year or single analysis based on one aspect are abundant, the main reason of which is the deficiency of the consistent demand data. In this regard, a comprehensive analysis of the evolution and their correlation of the two network are carried out in this work. We first revisit the topological evolution of rail network on the basis of URT network statistic indicators with a fifty-year time span. Then, based on the traditional node-place model, a correctional node-place model between demand spatial distribution and closeness centrality is established. Pearson correlation coefficient is also employed for a precise analysis. Finally, the application of the model and the corresponding analysis on Beijing Subway System (BSS) examine and evaluate the development level and service level of URT system in Beijing, and some solid evidence for relative decision-making is provided.

scholarly journals Demand Analysis and Distribution of Single-Trip Ticket Cards for Urban Rail Transit

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Zi-jia Wang ◽  
Jing-qi Li ◽  
Jiang-yue Wu ◽  
Zhi-gang Yang
Keyword(s):  
Urban Rail Transit ◽  
Distribution Model ◽  
Rail Transit ◽  
Effective Management ◽  
Transit Systems ◽  
Urban Rail ◽  
Usage Patterns ◽  
Subway System ◽  
Loading And Unloading ◽  
Hybrid Distribution

In the current urban rail transit systems, nearly 15% of passengers are noncommuter travelers who use single-trip ticket cards (ticket cards). Accordingly, the effective management of ticket cards is of great importance. This article suggests a time series model for use in predicting ticket card storage based on the characteristics of ticket cards collected by an automatic fare collection (AFC) system. The distribution cycle, station types, and distribution volume of each station are also determined. Then, drawing on small package transportation feasibility theory, an unbalanced distribution model between production and demand (unbalanced distribution model), as well as a hybrid distribution model of loading and unloading (hybrid distribution model), is established. Application of these models to the Beijing Subway system is used to verify the efficiency and feasibility of such a hybrid distribution model. The analysis and results offer insights into usage patterns of urban rail transit ticket cards, providing solid evidence for a relative decision-making process.

Empirical Analysis on the Risk Factors of Total Repurchase Price in BT Project of Urban Rail Transit

2013 ◽  
Vol 357-360 ◽  
pp. 2890-2895
Author(s):  
Li Ming Xia ◽  
Le Sun
Keyword(s):  
Risk Factors ◽  
Cluster Analysis ◽  
Empirical Analysis ◽  
Urban Rail Transit ◽  
Rail Transit ◽  
Rail Transportation ◽  
Factors Affecting ◽  
Urban Rail

Through the identification of the risk factors affecting the total repurchase price in BT project of the urban rail transit, we obtain data by questionnaires and make cluster analysis on all risk variables.Then select the key risk factors that affect total repurchase price,which play a guiding role for controlling the total repurchase price in the BT project of urban rail transportation.

Optimal Train Size and Headway for Urban Rail Transit System

2012 ◽  
Vol 253-255 ◽  
pp. 2020-2023
Author(s):  
Xue Jun Liu ◽  
Chuan Min Mi ◽  
Yuan Yuan Wang ◽  
Wei Vivien Shi
Keyword(s):  
Solution Procedure ◽  
Urban Rail Transit ◽  
Level Of Service ◽  
Load Factor ◽  
Rail Transit ◽  
Total System ◽  
Transit System ◽  
Demand Distribution ◽  
Urban Rail ◽  
Subway System

An analytical model and a solution procedure are proposed to optimize train size and headway for an urban rail transit system wherein passengers demand is assumed to be sensitive to fare and the level of service, in terms of load factor and waiting time. It is found that an optimal temporal headway and train size for different demand distribution that maximizes profit and minimize total system cost for the studied subway system can be efficiently solved.

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