Assessing Rail Transport Network Performance
And Reliability
Author(s)
R. Raicu & M. A. P. Taylor
Abstract
Network performance in general - and in the computing and telecommunications
areas in particular - is a topic of major interest. Much of this research is not in
the public domain, but this is beginning to change as international research teams
become aware of common problems and issues. In any event, rail systems have
certain special characteristics which limit the transferability of general network
methods to rail problems or which require additional work to develop relevant
interpretations and implementations for use in railway systems analysis. The
paper presents results of a research project aimed at developing decision support
tools for assessing rail network performance and reliability.
Keywords: rail transport network, network reliability and vulnerability,
congestion, delay.
1 Introduction
When analysing network performance an integrated approach considering
network infrastructure, operation and transport demand is essential.
The capacity of the transportation network can be evaluated by various
measures such as the travel times and the extent of congestion. Network flows
are influenced by abnormal events that affect network characteristics and
capacity, like disasters, accidents, construction or repair. Ideally, networks
should be designed so as to cope with normal fluctuations by offering alternative
paths, but planning for abnormal events is much more difficult.
In systems engineering, reliability may be defined as the degree of stability of
the quality of service which a system normally offers. In the face of increasing
user demands for high levels of service, system reliability is becoming
Keywords
rail transport network, network reliability and vulnerability,
congestion, delay.
Related Book
Other papers in this volume
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