Bottlenecks detection of track allocation schemes at rail stations by Petri nets
Jia, Wenzheng, Mau, Baohua, Ho, Tin Kin, Liu, Haidong, & Yang, Bo-Suk (2009) Bottlenecks detection of track allocation schemes at rail stations by Petri nets. Journal of Transportation Systems Engineering and Information Technology, 9(6), pp. 136-141.
Robustness of the track allocation problem is rarely addressed in literatures and the obtained track allocation schemes (TAS) embody some bottlenecks. Therefore, an approach to detect bottlenecks is needed to support local optimization. First a TAS is transformed to an executable model by Petri nets. Then disturbances analysis is performed using the model and the indicators of the total trains' departure delays are collected to detect bottlenecks when each train suffers a disturbance. Finally, the results of the tests based on a rail hub linking six lines and a TAS about thirty minutes show that the minimum buffer time is 21 seconds and there are two bottlenecks where the buffer times are 57 and 44 seconds respectively, and it indicates that the bottlenecks do not certainly locate at the area where there is minimum buffer time. The proposed approach can further support selection of multi schemes and robustness optimization.
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|Item Type:||Journal Article|
|Keywords:||Railway station, track allocation schemes, bottleneck detection, petri net|
|Subjects:||Australian and New Zealand Standard Research Classification > MATHEMATICAL SCIENCES (010000) > APPLIED MATHEMATICS (010200) > Operations Research (010206)
Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > ARTIFICIAL INTELLIGENCE AND IMAGE PROCESSING (080100) > Simulation and Modelling (080110)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Transport Engineering (090507)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
|Copyright Owner:||Copyright 2009 China Association for Science and Technology|
|Deposited On:||31 Oct 2010 22:32|
|Last Modified:||01 Mar 2012 01:34|
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