Dimensioning Of A Railway Station For
Unknown Operation
Author(s)
O. Lindfeldt & A.-I. Lundberg
Abstract
Every now and then new railway stations are brought into operation on existing
lines. This is a good way of increasing the availability of railway services and
attracting more passengers. However, from a capacity point of view, this
procedure can be quite tricky, since new stations and additional stops thoroughly
alter the traffic properties of the line.
The addition of a station like this in Solna, north of Stockholm is under
discussion. Here, most of the regional trains, but probably not the long-distance
trains, would stop for passenger exchange. A new line, connected to the main
line just north of Solna, would also contribute to the traffic flow through the new
regional station.
The essential question in this project was to determine the number of platform
tracks needed to cope with the traffic flow. However, it has proven difficult to
find a representative timetable structure to use in the dimensioning work, both
the total number of trains and the distribution between stopping and passing
trains turned out to be uncertain.
A combinatorial method was therefore applied. Using this approach, a large
number of timetables, i.e. possible traffic situations, were generated and tested
(automatically) for the number of platform tracks needed.
Constructing and using this simple model forced the engineers to understand
and describe the fundamentals of this operational/scheduling/dimensioning
problem. The procedure hence gave useful insights about the system properties
and a direct knowledge of the sensitivity of different factors that are essential for
the number of tracks needed at a railway station like this.
Keywords: station design, station capacity, timetable, combinatorial method.
Keywords
station design, station capacity, timetable, combinatorial method
Related Book
Other papers in this volume
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