Interurban road network planning model with accessibility and robustness objectives

Bruno F. Santos, António P. Antunes, Eric J. Miller

Research output: Contribution to journalArticleScientificpeer-review

35 Citations (Scopus)


Road network planning (or design) problems consist of determining the best investment decisions to be made with regard to the improvement of a road network. In this paper, we propose an optimization model for long-term interurban road network planning where accessibility and robustness objectives are simultaneously taken into account. Three network robustness measures were defined to assess different robustness concerns: network spare capacity; city evacuation capacity; and network vulnerability. The results that may be obtained from the application of the model are illustrated for three random networks. Special attention is given to the implications of adopting each one of the robustness measures upon the optimum solution provided by the model.

Original languageEnglish
Pages (from-to)297-313
Number of pages17
JournalTransportation Planning and Technology
Issue number3
Publication statusPublished - Apr 2010
Externally publishedYes


  • Optimization model
  • Reliability
  • Road network design
  • Robustness


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