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Title: Impact of Rail Terminal Design on Transit Service Reliability
Accession Number: 01154705
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: Ensuring reliable rail transit services is an important task for transit agencies. The effects of various terminal configurations on reliability of services were studied. The results could also be used for short-turning infrastructure. Short turning is a widespread measure to restore service after major disturbances; in many rail networks, additional switches are constructed to enable short turning. Calculations of the average delay per vehicle, regarding three main types of terminals, show the effect of frequency and occupancy time [determined by the distance from the switches to the platform (i.e., length of the terminal), technical turning time, and scheduled layover time]. The substantial effect of arrival variability and the number of lines using the terminal are also illustrated. With stochastic variables, delays will occur, although they are not to be expected in the static case. The best performance regarding reliability is achieved when double crossovers are situated after the platforms. Single tail tracks facilitating the turning process are acceptable only if frequencies are low, although they are often used in practice as short-tuning facilities for high frequency services. Occupancy time has a large impact on expected delays. This time can be minimized by designing short distances between switches and platform and tail tracks. Capacity management is not common in transit. However, increasing frequencies and large deviations force the consideration of limited capacity when planning infrastructure. If not, delays will occur, and additional measures will be necessary to solve them, which could be more expensive in the long term.
Monograph Title: Monograph Accession #: 01225991
Report/Paper Numbers: 10-1112
Language: English
Authors: van Oort, Nielsvan Nes, RobPagination: pp 109-118
Publication Date: 2010
ISBN: 9780309142984
Media Type: Print
Features: Figures
(10)
; References
(22)
; Tables
(1)
TRT Terms: Uncontrolled Terms: Subject Areas: Design; Public Transportation; Railroads; Terminals and Facilities; I20: Design and Planning of Transport Infrastructure
Files: TRIS, TRB, ATRI
Created Date: Jan 25 2010 10:29AM
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