Assessment of Service Performance in Railways: Stochastic Train Delay Simulation with Petri Nets
This paper presents a simulation procedure for railway operations, which intends to estimate the impact of disruptions in railway traffic. The approach is based on a Petri nets model capable of simulating railway operations with stochastic variations of train travel times. A description of the building process for traffic simulation with stochastic Petri nets is given. Compared to other simulation models, despite is not necessary a high level of detail of the characteristics of operations and of the infrastructure, it is proved that this simple model can obtain accurate results regarding the reproduction of train operation both under normal conditions or high traffic perturbations. The Petri nets model presented in this paper is developed to simulate train operations of the Cascais line in Lisbon metropolitan area. Furthermore, the model includes stochastic variations of travel times obtained through a statistical analysis of historical data of delays. By simulating delays, was performed an assessment of possible measures to improve railway service reliability in case of traffic disruption.
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Supplemental Notes:
- This paper was sponsored by TRB committee AR030 Railroad Operating Technologies
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Corporate Authors:
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Authors:
- Teixeira, Paulo Fonseca
- Caetano, L Filipe
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Conference:
- Transportation Research Board 91st Annual Meeting
- Location: Washington DC, United States
- Date: 2012-1-22 to 2012-1-26
- Date: 2012
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: 17p
- Monograph Title: TRB 91st Annual Meeting Compendium of Papers DVD
Subject/Index Terms
- TRT Terms: Headways; Petri nets; Railroads; Simulation; Stochastic processes; Timetables; Traffic delays; Train operations
- Subject Areas: Operations and Traffic Management; Railroads; I70: Traffic and Transport; I71: Traffic Theory;
Filing Info
- Accession Number: 01366395
- Record Type: Publication
- Report/Paper Numbers: 12-2420
- Files: TRIS, TRB
- Created Date: Mar 29 2012 7:14AM