Shortest Path Finding Problem in Stochastic Time-Dependent Road Networks With Stochastic First-In-First-Out Property
Shortest Path Finding Problem in Stochastic Time-Dependent Road Networks With Stochastic First-In-First-Out Property
复制标题
具有随机先进先出性质的随机时变道路网络中的最短路径查找问题
DOI:
10.1109/tits.2013.2270282
复制
发表时间:
2013-12
影响因子:
8.5
通讯作者:
Yan K.
中科院分区:
文献类型:
--
作者:
Chen Bi Yu;Lam William H.K.;Li Qingquan;Sumalee A.;Yan K.
As travel times in road networks are dynamic and uncertain, it is difficult and time-consuming to search for the least expected time path in large-scale networks. This paper addresses the problem of finding the least expected time path in stochastic time-dependent (STD) road networks. A stochastic travel speed model is proposed to represent STD link travel times. It is proved that the link travel times in STD networks satisfy the stochastic first-in-first-out (S-FIFO) property. Based on this S-FIFO property, an efficient multicriteria A* algorithm is proposed to exactly determine the least expected time path in STD networks. Computational results using several large-scale road networks show that the proposed algorithm has a significant computational advantage over existing solution algorithms without the S-FIFO property.
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发表时间:
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