Joint Design Standard For Running Times,
Dwell Times And Headway Times
Author(s)
V. A. Weeda & P. B. L. Wiggenraad
Abstract
A punctual train service requires a feasible timetable. This paper deals with
design standards for running times, dwell times, and headway times. Feedback
from operations to planning is an appropriate way to determine the required
standards for delivering the desired performance. This feedback has been
explored by analysing the traffic process in recent months on two Dutch
mainlines. A conceptual conflict model has been developed to derive an
empirical relationship between headways and reactionary delays. The operational
observations make up the basis for a flexible joint standard for running, dwell
and headway times. The suggested standard explicitly takes conflicts into
account, either preventing them by scheduling a larger headway time, or
compensating for them by increasing the running time supplement of the
succeeding train.
Keywords: conflicts, punctuality, running time, timetable design.
1 Introduction
1.1 Relevance
Punctuality is an important performance indicator in railway transport. A
punctual railway service requires both an adequate planning and operation close
to the planning [1]. This paper deals with the first of these and focuses on three
elementary processes in railway operations: running times, dwell times, and
headway times. The timetable reserves a particular time laps for each process,
consisting of two parts: the technically minimal time, and a margin to cope with
variations during operations. A certain quantity of margins is necessary for a
Keywords
conflicts, punctuality, running time, timetable design.
Related Book
Other papers in this volume
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