Joint optimization of freight facility location and pavement infrastructure rehabilitation under network traffic equilibrium

Leila Hajibabai, Yun Bai, Yanfeng Ouyang

Research output: Contribution to journalArticlepeer-review

Abstract

Establishment of industry facilities often induces heavy vehicle traffic that exacerbates congestion and pavement deterioration in the neighboring highway network. While planning facility locations and land use developments, it is important to take into account the routing of freight vehicles, the impact on public traffic, as well as the planning of pavement rehabilitation. This paper presents an integrated facility location model that simultaneously considers traffic routing under congestion and pavement rehabilitation under deterioration. The objective is to minimize the total cost due to facility investment, transportation cost including traffic delay, and pavement life-cycle costs. Building upon analytical results on optimal pavement rehabilitation, the problem is formulated into a bi-level mixed-integer non-linear program (MINLP), with facility location, freight shipment routing and pavement rehabilitation decisions in the upper level and traffic equilibrium in the lower level. This problem is then reformulated into an equivalent single-level MINLP based on Karush-Kuhn-Tucker (KKT) conditions and approximation by piece-wise linear functions. Numerical experiments on hypothetical and empirical network examples are conducted to show performance of the proposed algorithm and to draw managerial insights.

Original languageEnglish (US)
Pages (from-to)38-52
Number of pages15
JournalTransportation Research Part B: Methodological
Volume63
DOIs
StatePublished - May 2014

Keywords

  • Bi-level
  • Facility location
  • Optimization
  • Pavement rehabilitation
  • Traffic equilibrium

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Transportation

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