Hyperstar: A multi-path Astar algorithm for risk averse vehicle navigation

被引:90
作者
Bell, Michael G. H. [1 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, Dept Civil & Environm Engn, London SW7 2BU, England
基金
英国工程与自然科学研究理事会;
关键词
Robust route guidance; Vehicle navigation; Uncertain networks; ASSIGNMENT;
D O I
10.1016/j.trb.2008.05.010
中图分类号
F [经济];
学科分类号
02 ;
摘要
The Astar algorithm, which forms the backbone of vehicle navigation systems, is capable of producing only one path. Given uncertainty about link travel times, there is interest in algorithms that can deliver all the paths that may be optimal, termed collectively a hyperpath, to improve travel time reliability. The actual path taken within the hyperpath will typically be determined by on-trip events, like incidences of congestion leading to delay. In this paper, the Spiess and Florian algorithm for generating hyperpaths in transit networks is adapted to road networks by assuming that drivers follow a risk averse strategy whenever a choice of path arises. To improve the efficiency of the resulting algorithm for vehicle navigation applications, the Astar approach to link selection is incorporated, leading to the Hyperstar algorithm. Proof of the optimality of the algorithm is provided, followed by numerical examples. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:97 / 107
页数:11
相关论文
共 26 条
[1]   On finding dissimilar paths [J].
Akgün, V ;
Erkut, E ;
Batta, R .
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH, 2000, 121 (02) :232-246
[2]  
[Anonymous], 1970, SOVIET MATH DOKLADY
[3]   AN ALGORITHM FOR THE RANKING OF SHORTEST PATHS [J].
AZEVEDO, JA ;
COSTA, MEOS ;
MADEIRA, JJERS ;
MARTINS, EQV .
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH, 1993, 69 (01) :97-106
[4]  
BARRA T, 1993, P 21 PTRC SUMM ANN C, P167
[5]  
BAUER R, 2007, ARRIVALTR91
[6]  
Bekhor S., 2001, P 4 TRISTAN C AZ POR
[7]  
Ben-Akiva M., 1984, P 9 INT S TRANSPORTA, P299
[8]   Reliable pretrip multipath planning and dynamic adaptation for a centralized road navigation system [J].
Chen, Yanyan ;
Bell, Michael G. H. ;
Bogenberger, Klaus .
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS, 2007, 8 (01) :14-20
[9]  
Dial RB, 2000, TRANSPORT RES REC, P54
[10]  
Dijkstra E. W., 1959, Numerische Mathematik, DOI [10.1007/BF01386390, DOI 10.1007/BF01386390]