Evaluation of single track timetables using simulation
2014 (English)In: IEEE/ASME 2014 Joint Rail Conference, ASME Press, 2014Conference paper (Refereed)
One way to model train operations and make predictions offuture outcome is to use simulation. Many lines and networksconnecting major cities have a high capacity utilization, meaningthat running additional trains leads to an even more strainedsituation and delays are likely to increase. The mix of averagetrain speeds is also related to capacity and delay propagation.Considering one line or several lines connected in a networka requested train traffic can consist of different train categoriesand departure frequencies. There are usually several possibletimetables satisfying this traffic demand. The infrastructure oftenimplies limitations on the type and volume of traffic that can behandled. Additionally constraints introduced by requests for regularintervals, minimum headways, passenger transfers betweentrains etc. can reduce the number of acceptable timetables.This paper presents an approach using combinatorial traininitiations and simulation to generate conflict-free timetables.These can then be simulated with random variations in departureand dwell times. This is implemented on a fictive single track linewith high speed passenger train traffic. The objective is to studyoutcome by varying allowance times and delays. Simulations arecarried out in RailSys, a software using synchronous simulationto model train traffic operations.
Place, publisher, year, edition, pages
ASME Press, 2014.
Transport Systems and Logistics
Research subject Transport Science
IdentifiersURN: urn:nbn:se:kth:diva-168022DOI: 10.1115/JRC2014-3820ISI: 000359389500064ScopusID: 2-s2.0-84902831696OAI: oai:DiVA.org:kth-168022DiVA: diva2:813949
2014 Joint Rail Conference, JRC 2014; Colorado Springs, CO; United States;April 2014
QC 201505262015-05-252015-05-252015-09-28Bibliographically approved