Headway Generation With ROBERTO
Author(s)
A. D. Middelkoop
Abstract
A traditional and expensive solution for bottlenecks in a railway network is to
build more infrastructure. To handle future growth of passenger and freight
transport demand, the Dutch rail infra manager ProRail is looking for alternative
ways to solve capacity and quality bottlenecks. One of the ideas is to evaluate
and improve the timetable development process. By applying design principles
and by other conditions, buffer times are used in different timetable construction
phases. It is not clear whether and where the use of buffer times may cause a
double claim on capacity. An important design principle is the use of headway
times to separate two trains in the timetable safely. The specific values for
headway situations are mostly unknown. Planners use general values, based on
their experience. The current timetable planning tools require headway times as
input data. Given the large number of potential train combinations, it is almost
impossible to know every headway time before timetable construction starts. To
improve the knowledge and application of headway times, ProRail started the
development of ROBERTO, a tool for generating a large number of headway
times. The aim is to compute headway times for specific situations and to
determine general headway times for use on a more global level. The input for
ROBERTO is generated by simulating train characteristics, block section
occupation times and signalling aspects. ROBERTO combines possible
conflicting train pairs and calculates the headway times. All results are fed into
the planning systems and the effect on capacity and quality will be evaluated.
Keywords: timetable design, headways, simulation.
1 Introduction
This paper describes the development of a new planning support tool
ROBERTO, for generating a large number of headway times. After a short
introduction of the Dutch Rail Network and its challenge for the near future in
Keywords
timetable design, headways, simulation
Related Book
Other papers in this volume
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