CAPACITY VS. RELIABILITY IN RAILWAYS: A STOCHASTIC MICRO–SIMULATION APPROACH

2nd International Conference on Road and Rail Infrastructure (CETRA 2012)

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Title CAPACITY VS. RELIABILITY IN RAILWAYS: A STOCHASTIC MICRO–SIMULATION APPROACH
 
Creator Giovanni Longo; University of Trieste - Dept. of Civil Engineering and Architecture
Giorgio Medeossi; University of Trieste - Dept. of Civil Engineering and Architecture
 
Subject Railway capacity, timetable reliability, stochastic simulation
 
Description Railway transport is increasing its strategic role at urban, national and international level both for passenger and freight mobility. In fact, road traffic congestion causes decreasing levels of service and railways can become more and more reliable thanks to recent investments in infrastructures and technology. In recent years, the unexpected economic crisis is forcing planners to find less expensive and easier to build measures, which effectiveness has to be demonstrated before being approved.
As a result, quantitative methods have to be used, which allow a precise capacity estimation, also considering different timetable scenarios, interlocking systems and infrastructure layouts. Moreover, since a high traffic reliability level has to be offered, the effects of increasing traffic on punctuality have to be taken into consideration while estimating capacity.
In this paper a methodology is presented, one which allows a precise estimation of the trade– off between capacity and reliability on railway networks and identifies the system bottlenecks. This methodology is based on stochastic micro–simulation of rail traffic, which has been calibrated using extensive real life data. The successful results obtained using the methodology in important sections of two Pan–European corridors are described and discussed in the second part of the paper. The first case study deals with the network between Trieste and Venice, on the Corridors N.5 and 23; it plays a crucial role at a continental level, since it represents the connection between Italy and all countries of Central and Eastern Europe. The second application focuses on the Croatian part of the X Corridor (Dobova–Zagreb–Tovarnik), which connects Germany and Austria with the Balkan Area.
 
Publisher CETRA 2012
 
Contributor
 
Date 2017-02-28 17:37:09
 
Type Peer-reviewed Paper
 
Identifier http://master.grad.hr/cetra/ocs/index.php/cetra/cetra2012/paper/view/227
 
Source CETRA 2012; 2nd International Conference on Road and Rail Infrastructure
 
Language en
 
Rights <p>Authors who submit to this conference agree to the following terms:<br /> <strong>a)</strong> Authors retain copyright over their work, while allowing the conference to place this unpublished work under a <a href="http://creativecommons.org/licenses/by/3.0/">Creative Commons Attribution License</a>, which allows others to freely access, use, and share the work, with an acknowledgement of the work's authorship and its initial presentation at this conference. <br /> <strong>b)</strong> Submitted full papers will be published in the book of proceedings "Road and Rail Infrastructure II" as well as in digital form (on a CD). Conference organiser is allowed to publish author's names, institution and country as well as the paper abstract on the conference web site.</p>
 

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