Centrality of an Urban Rail System

To, Wai Ming

doi:10.1007/s40864-016-0031-3

Cited by 25 publications

(16 citation statements)

References 35 publications

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“…She stresses the role of the betweenness indicator, which captures the transit characteristics of the metro systems. This conclusion is also shared by To (2015) who uses the measure to identify characteristics of the Hong Kong urban rail system. Li, Xu and Shi (2015) applied network theory to studies of the dynamic evolution of world shipping, showing the central but declining position of Europe in the world shipping network.…”

Section: Accessibility and Network -Previous Researchmentioning

confidence: 72%

“…The possibility of using any time saved for work or leisure is probably an important consideration for many commuters. Some previous studies (Derrible, 2012;To, 2015) stress the importance of the betweenness measure since it captures the transfer characteristics of the network. In the present study, these measures are not significant in any specification.…”

Section: Discussionmentioning

confidence: 99%

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Borrowed sizes: A hedonic price approach to the value of netowrk structure in public transport systems

Bohman

Nilsson

2021

JTLU

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Property prices are known to be higher in places with high accessibility, such as in proximity to train stations and especially to commuter rail, than in places without this access. This study provides a better understanding of how regional accessibility, through the structure of railway networks, can influence local agglomeration economies by providing accessibility to large labor markets. Previous literature has shown a positive impact of proximity to railway stations on housing prices, and our study adds to the literature by analyzing the impact of network structure. We argue that public transport systems can support the benefits of city networks in line with Alonso’s concept of borrowed sizes (1973). Using network theory to measure accessibility provided by the network, we show that stations that provide accessibility to large labor markets across the region are perceived as more attractive by households. Cities in proximity to other cities are strengthened through their public transport links, which allow agglomeration benefits to be exploited by residents.

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Section: Accessibility and Network -Previous Researchmentioning

confidence: 72%

Section: Discussionmentioning

confidence: 99%

Borrowed sizes: A hedonic price approach to the value of netowrk structure in public transport systems

Bohman

Nilsson

2021

JTLU

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“…In this final example scenario of applicability for the proposed nonlocal PageRank model we consider the ranking in term of importance of urban railways. Tools from network science have proved to be valuable in the study of urban transport [22,58] and here we consider the use of nonlocal PageRank network centrality in the case of the London train network. Nodes in the network represent stations, and we seek a distance so that the resulting centrality measure correlates well with passenger usage.…”

Section: Metro Distance and The London's Train Multilayer Networkmentioning

confidence: 99%

Nonlocal pagerank

2021

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In this work we introduce and study a nonlocal version of the PageRank. In our approach, the random walker explores the graph using longer excursions than just moving between neighboring nodes. As a result, the corresponding ranking of the nodes, which takes into account a long-range interaction between them, does not exhibit concentration phenomena typical of spectral rankings which take into account just local interactions. We show that the predictive value of the rankings obtained using our proposals is considerably improved on different real world problems.

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“…[16,22,31]. Cleaning is one of the most common mitigating practices because it prevents the accumulation of dirt on the insulator's surface [32][33][34]. Cleaning can be performed both manually and automatically, although, the latter is more accurate, less time-consuming, and safer [35][36][37].…”

Section: Mitigating Practicesmentioning

confidence: 99%

Third-Rail Insulator Failure Causes and Mitigating Practices: A Comparative Study of Multiple Case Studies in the U.S.

Rouhanizadeh

Kermanshachi

2020

Urban Rail Transit

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Rail transit systems are one of the most important and popular types of transit systems used daily in metropolitan areas all around the world. The third rail is one of the providers of traction power in electrified rail systems, but it faces several issues, such as insulator failures. The purpose of this study is to investigate the causes of insulator failures, which have not been comprehensively studied and presented in the literature. To accomplish this objective, eight transit systems with third rails were selected to (1) investigate the characteristics of third-rail systems, (2) determine the causes of insulator failures, (3) analyze the costs associated with insulator failures, and (4) determine mitigating practices to reduce the number and cost of insulator failures. After a thorough literature review, details of eight case studies were collected from different transit agencies, and their subject matter experts were asked to complete a survey and provide input. The results revealed that a build-up of dirt was the major cause of the 17 identified causes of insulator failures; carbon dust and dirt were identified as the most present particles in third-rail systems. It was noted that transit agencies often implement multiple mitigating practices such as cleaning the insulator, performing visual inspections, and conducting regular maintenance to reduce the number and cost of insulator failures. The findings of this study will help decision-makers for transit systems make timely decisions to prevent third-rail insulator failures and adopt appropriate practices that best fit their transit system.

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Centrality of an Urban Rail System

Cited by 25 publications

References 35 publications

Borrowed sizes: A hedonic price approach to the value of netowrk structure in public transport systems

Borrowed sizes: A hedonic price approach to the value of netowrk structure in public transport systems

Nonlocal pagerank

Third-Rail Insulator Failure Causes and Mitigating Practices: A Comparative Study of Multiple Case Studies in the U.S.

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