scholarly journals Reliability Optimization of a Railway Network

2020 ◽  
Vol 12 (23) ◽  
pp. 9805
Author(s):  
Xuelei Meng ◽  
Yahui Wang ◽  
Limin Jia ◽  
Lei Li
Keyword(s):  
Optimal Decision ◽  
Reliability Optimization ◽  
Quality Service ◽  
Passenger Transport ◽  
Railway Network ◽  
Railway Line ◽  
Railway Passenger Transport ◽  
Railway Passenger ◽  
Line Network ◽  
High Quality Service

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.

scholarly journals Proposal of Traffic Service Rationalization on Zvolen – Šahy Railway Line

2020 ◽  
Vol 16 (1) ◽  
pp. 21-25
Author(s):  
Jozef Gašparík ◽  
Milan Dedík ◽  
Martin Vojtek ◽  
Adrián Šperka
Keyword(s):  
Transport System ◽  
Current Trend ◽  
Transport Systems ◽  
Passenger Transport ◽  
Population Mobility ◽  
Transport Characteristic ◽  
Railway Line ◽  
Railway Passenger Transport ◽  
Passenger Trains ◽  
Railway Passenger

AbstractIncreasing population mobility and current trend of creating integrated passenger transport systems are opportunities for finding new possibilities to rationalization the railway passenger transport on those lines, where are no passenger trains or where the traffic service is not optimal nowadays. Precondition of reinstating the railway passenger transport is thorough potential passenger analysis, where there are actual geographic, demographic and transport characteristics of the region, where this line is situated. The contribution describes the passenger transport system, timetables rationalization and standards of traffic service in rail passenger transport. Consequently, according to these outputs and demographic and transport characteristic was proposed the rationalization of traffic service at Zvolen – Šahy transport route.

scholarly journals Regression Models for Determining Dependencies on Various Factors on the Railway Line Zohor – Záhorská Ves

2020 ◽  
Vol 16 (2) ◽  
pp. 5-9
Author(s):  
Juraj Čamaj ◽  
Štefan Čarný ◽  
Adrián Šperka
Keyword(s):  
Regression Models ◽  
Sustainable Transportation ◽  
Railway Track ◽  
Statistical Dependence ◽  
Negative Consequences ◽  
Passenger Transport ◽  
Railway Transport ◽  
Railway Line ◽  
Railway Passenger Transport ◽  
Railway Passenger

AbstractPublic passenger transport is presented as an opportunity to achieve future goals for establishing sustainable transportation systems. These systems are demanded from every member country of the EU for securing an ecologically friendly, fast, and reliable way of traveling in regions. Railway passenger transport is proven as a reliable and capable way of connecting regions. In many EÚ countries, railway transport has a certain gap, that could be improved without significant investments. In this study, we are focusing on negative consequences emerging from the cancelling operation of passenger transport on the chosen railway track. Most of the cancelations are affected by external influences. Individual car transport presents significant reasons with a noticeable impact on the potential of railway passenger transport in every region. On the railway line addressed in this article, passenger transport was cancelled in December 2019. This step was implemented for the constantly declining number of passengers. The object of the research is statistical dependence, characterized by the fact that the dependent variable is affected not only by independent variables but also by other unspecified variables and random effects. They are often called model faults or errors. This fact must be captured in a mathematical expression in a regression model. Based on this decision, it is necessary to seek answers to this situation using regression models that show the relationships between the number of passengers carried and the factors influencing their development. The main hypothesis is that the canceled of passenger transport was caused by low use by passengers. For example, with an increase/decrease in population, the number of passengers should increase/decrease the article verifies the dependences of the use of railway transport on the population of individual municipalities and on the development of fuel prices. Various dependencies (linear, polynomial, etc.) are used to test hypotheses. Testing of these dependencies will be performed using Fisher–Snedecor distribution. In the final part, the article also deals with the possibilities of using this line, as freight railway transport is no longer operated on this line. The research was carried out by a case study.

scholarly journals Management of Urban and Regional Rail: Case Study Bucharest

2020 ◽  
Vol 11 (2) ◽  
pp. 120-131
Author(s):  
Florin Bădău ◽  
Borna Abramović ◽  
Angel Ciprian Cormoș ◽  
Valentin Iordache
Keyword(s):  
Passenger Transport ◽  
Short Term ◽  
Railway Network ◽  
European Cities ◽  
Current State ◽  
Railway Passenger Transport ◽  
Train Services ◽  
Railway Passenger ◽  
The City

AbstractThe capital of Romania is the main railway hub of the country. As such, the railway network around the capital is quite extensive, with main cities around it being directly connected by rail. Despite this, there are no regular train services for commuters, similar to other large European cities. This paper aims to analyze the current state of railway passenger transport in the region surrounding Bucharest, to highlight the weaknesses of the network and to present a guideline for the implementation of an efficient commuter service. 100 stations in and around the city were evaluated with regard to their degree of accessibility (DoA), defined as the location of the station relative to the nearest settlement. Train frequency, travel times and journey costs were determined for each line originating in Bucharest. These variables were compared to their road equivalents to highlight the differences between these two modes of transport. Low train frequency and the remoteness of many stations were determined to be the main obstacles in establishing an appropriate commuter service. Reworking future timetables to prioritize commuter trains is proposed as a short-term solution, while line improvements and better integration with existing public transport are set as priorities.

scholarly journals Fuzzy-Bayesian-network-based Safety Risk Analysis in Railway Passenger Transport

2018 ◽  
Vol 46 (3) ◽  
pp. 135-141 ◽  
Author(s):  
Dongye Sun ◽  
Yuanhua Jia ◽  
Yang Yang ◽  
Huanan Li ◽  
Liping Zhao
Keyword(s):  
Bayesian Network ◽  
Safety Management ◽  
Group Decision ◽  
Control Strategies ◽  
Passenger Transport ◽  
Safety Risk ◽  
Passenger Safety ◽  
Railway Passenger Transport ◽  
Transport Safety ◽  
Railway Passenger

This study presents a fuzzy Bayesian network (FBN) method to analyze the influence on the safety risk of railway passenger transport applying different risk control strategies. Based on the fuzzy probability of the basic event determined by the expert group decision method, the proposed FBN method can reasonably predict the probability of railway passenger safety risk. It is also proven that control the risk in the safety management of railway passenger transport will be the most effective way to reduce the risk probability of the railway passenger transport safety.

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