Bottlenecks detection of track allocation schemes at rail stations by Petri nets
Data(s) |
01/12/2009
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Resumo |
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. |
Formato |
application/pdf |
Identificador | |
Publicador |
Elsevier B.V. |
Relação |
http://eprints.qut.edu.au/38257/1/c38256.pdf DOI:10.1016/S1570-6672(08)60094-X 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. |
Direitos |
Copyright 2009 China Association for Science and Technology |
Fonte |
Faculty of Built Environment and Engineering; School of Engineering Systems |
Palavras-Chave | #010206 Operations Research #080110 Simulation and Modelling #090507 Transport Engineering #Railway station #track allocation schemes #bottleneck detection #petri net |
Tipo |
Journal Article |