Microscopic and macroscopic simulation of early freight train departures
In Sweden and other countries it is not an uncommon practice that freight trains depart more or less on-demand instead of strictly following a pre-planned timetable. However, the systematic effects of freight trains departing late or (in particular) early has long been a contested issue. Although some microscopic simulation tools currently have the capability to evaluate the effect of freight trains departing before schedule, it has yet not been established how macroscopic simulation tools, capable of fast simulation of nation-wide networks, can manage such tasks. This paper uses a case study on a line between two large freight yards in Sweden to investigate how the results of microscopic and macroscopic simulation, represented by two modern simulation tools, differ when it comes to this particular problem. The main findings are that both the microscopic and the macroscopic tools replicated the empirical punctuality fairly well. Furthermore, allowing early departures of freight trains increased overall freight train punctuality while the passenger train punctuality decreased slightly, as determined by both tools. The results are encouraging, but further studies are needed to determine if macroscopic simulation is on-par with microscopic simulation.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/22109706
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Supplemental Notes:
- © 2022 Ingrid Johansson et al. Published by Elsevier Ltd. Abstract reprinted with permission of Elsevier.
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Authors:
- Johansson, Ingrid
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0000-0003-2654-8173
- Palmqvist, Carl-William
- Sipilä, Hans
- Warg, Jennifer
- Bohlin, Markus
- Publication Date: 2022-3
Language
- English
Media Info
- Media Type: Web
- Features: Figures; Maps; References;
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Serial:
- Journal of Rail Transport Planning & Management
- Volume: 21
- Issue Number: 0
- Publisher: Elsevier
- ISSN: 2210-9706
- Serial URL: http://www.sciencedirect.com/science/journal/22109706
Subject/Index Terms
- TRT Terms: Case studies; Departure time; Freight trains; Macroscopic traffic flow; Microsimulation; On time performance; Schedules; Train operations
- Geographic Terms: Sweden
- Subject Areas: Freight Transportation; Operations and Traffic Management; Planning and Forecasting; Railroads;
Filing Info
- Accession Number: 01839924
- Record Type: Publication
- Files: TRIS
- Created Date: Mar 24 2022 5:26PM