Reliability Optimization of a Railway Network

With the increase of the railway operating mileage, the railway network is becoming more and more complicated. We expect to build more railway lines to offer the possibility to offer more high quality service for the passengers, while the investment is often limited. Therefore, it is very important...

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Main Authors: Xuelei Meng, Yahui Wang, Limin Jia, Lei Li
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Sustainability
Subjects:
Online Access:https://www.mdpi.com/2071-1050/12/23/9805
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spelling doaj-5d52b5c04f0649b8a5aa03a3004a238b2020-11-27T07:54:52ZengMDPI AGSustainability2071-10502020-11-01129805980510.3390/su12239805Reliability Optimization of a Railway NetworkXuelei Meng0Yahui Wang1Limin Jia2Lei Li3School of Traffic and Transportation, Lanzhou Jiaotong University, Lanzhou 730070, Gansu, ChinaSchool of Foreign Languages, Lanzhou Jiaotong University, Lanzhou 730070, Gansu, ChinaState Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province, Zhejiang Normal University, Jinhua 321004, Zhejiang, ChinaWith the increase of the railway operating mileage, the railway network is becoming more and more complicated. We expect to build more railway lines to offer the possibility to offer more high quality service for the passengers, while the investment is often limited. Therefore, it is very important to decide the pairs of cities to add new railway lines under the condition of limited construction investment in order to optimize the railway line network to maximize the reliability of the railway network to deal with the railway passenger transport task under emergency conditions. In this paper, we firstly define the reliability of the railway networks based on probability theory by analyzing three minor cases. Then we construct a reliability optimization model for the railway network to solve the problem, expecting to enhance the railway network with the limited investment. The goal is to make an optimal decision when choosing where to add new railway lines to maximize the reliability of the whole railway network, taking the construction investment as the main constraint, which is turned to the building mileage limit. A computing case is presented based on the railway network of Shandong Province, China. The computing results prove the effectiveness of the model and the efficiency of the algorithm. The approach presented in this paper can provide a reference for the railway investors and builders to make an optimal decision.https://www.mdpi.com/2071-1050/12/23/9805railway networkreliabilityoptimizationinvestment limitprobability theory
collection DOAJ
language English
format Article
sources DOAJ
author Xuelei Meng
Yahui Wang
Limin Jia
Lei Li
spellingShingle Xuelei Meng
Yahui Wang
Limin Jia
Lei Li
Reliability Optimization of a Railway Network
Sustainability
railway network
reliability
optimization
investment limit
probability theory
author_facet Xuelei Meng
Yahui Wang
Limin Jia
Lei Li
author_sort Xuelei Meng
title Reliability Optimization of a Railway Network
title_short Reliability Optimization of a Railway Network
title_full Reliability Optimization of a Railway Network
title_fullStr Reliability Optimization of a Railway Network
title_full_unstemmed Reliability Optimization of a Railway Network
title_sort reliability optimization of a railway network
publisher MDPI AG
series Sustainability
issn 2071-1050
publishDate 2020-11-01
description With the increase of the railway operating mileage, the railway network is becoming more and more complicated. We expect to build more railway lines to offer the possibility to offer more high quality service for the passengers, while the investment is often limited. Therefore, it is very important to decide the pairs of cities to add new railway lines under the condition of limited construction investment in order to optimize the railway line network to maximize the reliability of the railway network to deal with the railway passenger transport task under emergency conditions. In this paper, we firstly define the reliability of the railway networks based on probability theory by analyzing three minor cases. Then we construct a reliability optimization model for the railway network to solve the problem, expecting to enhance the railway network with the limited investment. The goal is to make an optimal decision when choosing where to add new railway lines to maximize the reliability of the whole railway network, taking the construction investment as the main constraint, which is turned to the building mileage limit. A computing case is presented based on the railway network of Shandong Province, China. The computing results prove the effectiveness of the model and the efficiency of the algorithm. The approach presented in this paper can provide a reference for the railway investors and builders to make an optimal decision.
topic railway network
reliability
optimization
investment limit
probability theory
url https://www.mdpi.com/2071-1050/12/23/9805
work_keys_str_mv AT xueleimeng reliabilityoptimizationofarailwaynetwork
AT yahuiwang reliabilityoptimizationofarailwaynetwork
AT liminjia reliabilityoptimizationofarailwaynetwork
AT leili reliabilityoptimizationofarailwaynetwork
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