An Effective Approach to Treating with Unrealistic Paths in Multi-Modal Traffic Assignment

The topology structure of the real transportation network in traffic assignment model could be changed by centroid connectors and it leads to the unrealistic paths problem. Two types of unrealistic paths in multi-modal traffic assignment are defined. The method to avoid the second type of unrealistic paths that cannot be treated effectively by state-to-practice commercial transportation planning software is studied. Based on the shortest path algorithm with deque data structure, the algorithm to tackle the two types of unrealistic paths is proposed. It is tested in large scale transportation network with both vehicle traffic assignment model and multi-modal traffic assignment model. The results show that the algorithm is very effective. The proposed algorithm can remedy the disadvantage of commercial transportation planning software.


  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 2377-2382
  • Monograph Title: International Conference on Transportation Engineering 2009

Subject/Index Terms

Filing Info

  • Accession Number: 01529561
  • Record Type: Publication
  • ISBN: 9780784410394
  • Files: TRIS, ASCE
  • Created Date: Nov 12 2013 1:41PM