• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 19 Issue 5
Oct.  2006
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Article Contents
LIU Haixu, PU Yun. Improvement of Road Network Reliability Based on Critical Links[J]. Journal of Southwest Jiaotong University, 2006, 19(5): 645-648.
Citation: LIU Haixu, PU Yun. Improvement of Road Network Reliability Based on Critical Links[J]. Journal of Southwest Jiaotong University, 2006, 19(5): 645-648.

Improvement of Road Network Reliability Based on Critical Links

  • Received Date: 20 Feb 2006
  • Publish Date: 25 Oct 2006
  • To simplify the problem of improving road network reliability with limited resources,only critical links,which are chosen by travelers with higher probabilities than a prescribed threshold,were selected.Because stochastic user equilibrium with elastic demand is used to characterize the travelers’ route choice behaviors before and after incidents (e.g.,earthquakes,floods,hurricanes,etc.),the link choice probabilities can be computed in an efficient link-based manner,and the critical links can be easily determined.A mathematical model was presented,in which the highest reliability corresponding to net economic benefit was taken as the objective for the road network subject to a resource constraint.A heuristic algorithm for the model was designed.The results of a numerical example were presented to show the effectiveness of the proposed method.

     

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