Solving the K-shortest paths problem in timetable-based public transportation systems
Solving the K-shortest paths problem in timetable-based public transportation systems
复制标题
解决基于时刻表的公共交通系统中的K最短路径问题
DOI:
10.1080/15472450.2015.1082911
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发表时间:
2016-09
影响因子:
3.6
通讯作者:
Xu, Bingji
中科院分区:
文献类型:
--
作者:
Yang, Yang;Hu, Xiaolin;Li, Jianmin;Xu, Bingji
Abstract Finding the K-shortest paths in timetable-based public transportation systems is an important problem in practice. It has three typical variants: the K-earliest arrival problem (K-EAP), the K-shortest travel time problem (K-STTP), and the K-minimum number of transfers problem (K-MNTP). In this article we show that these problems can be solved efficiently by first modeling the timetable information with the time-expanded approach, then applying the Martins and Santos (MS) algorithm. Then we model the timetable information with the time-dependent approach and propose a modified version of the MS algorithm for solving the K-EAP. Experimental results on real-world data show that for K smaller than 100, which is enough for most applications, the execution times of the MS algorithm for the problems in the time-expanded model are less than 100 ms on a server with a 1.86-GHz central processing unit (CPU) and 4 GB of memory. For solving the K-EAP the modified MS algorithm in the time-dependent model is even more efficient (about three times faster for K ≤ 100) than the original algorithm in the time-expanded model. Our results imply the great potential of the MS algorithms in practical transportation service systems.
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影响因子:
2
作者:
Martins, Ernesto Q. V.;Pascoal, Marta M. B.
通讯作者:
Pascoal, Marta M. B.
DOI:
10.1016/j.ejor.2013.10.022
发表时间:
2014-08
期刊:
Eur. J. Oper. Res.
影响因子:
--
作者:
L. Nielsen;K. A. Andersen;D. Pretolani
通讯作者:
L. Nielsen;K. A. Andersen;D. Pretolani
DOI:
--
发表时间:
2001
期刊:
--
影响因子:
--
作者:
E. Martins;Marta M. B. Pascoal;J. L. Santos
通讯作者:
E. Martins;Marta M. B. Pascoal;J. L. Santos
影响因子:
6.8
作者:
N. V. D. Zijpp;S. Catalano
通讯作者:
N. V. D. Zijpp;S. Catalano
DOI:
10.1142/s0129054199000186
发表时间:
1999-09
期刊:
Int. J. Found. Comput. Sci.
影响因子:
--
作者:
E. Martins;Marta M. B. Pascoal;J. L. Santos
通讯作者:
E. Martins;Marta M. B. Pascoal;J. L. Santos