Systematic Analyses Of Train Run Deviations
From The Timetable
Author(s)
T. Richter
Abstract
On Rail Net Denmark’s network, a Delay Report is created if a train is delayed
more than 4 minutes and 59 seconds. All delayed trains are attached to a Delay
Report describing the cause and consequences of the incident. The Punctuality
Reporting System focuses on the causes of initial delays and much effort is spent
analysing those. However, until now, much less effort has been spent on
systematically analysing the train running themselves, extracting information on
where in the network trains are delayed and which trains are delayed. After a
description of the present delay follow-up system and its systemic weakness
(section 3 and section 4), a toolbox of analytical methods developed to deal with
this weakness is presented. The methods use a percentile approach aggregating
either deviation from the timetable at measuring points or difference in deviation
between measuring points. The aim is to identify the measuring points where the
largest delays occur for individual trains and train systems so that the parties
responsible can act. After a description of the methods (section 5), examples of
the new types of analysis are demonstrated (section 6), e.g. identification of local
speed restrictions which influence the punctuality, the worst performing trains
and reasons for their delays. It is thus shown how new information can be
extracted from the train run history. The percentile approach is orthogonal to the
classical analysis of cause of delay above a threshold and should not be regarded
as a substitute but as a valuable supplement. One of the reasons for the
successful implementation is a general shift in the corporate mindset within Rail
Net Denmark towards a higher KPI focus.
Keywords: railway operations, systematic follow-up, delay, punctuality, service
quality, robustness, realised operations, organisational implementation.
Keywords
railway operations, systematic follow-up, delay, punctuality, service
quality, robustness, realised operations, organisational implementation
Related Book
Other papers in this volume
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