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      Designing a road network for hazardous materials shipments

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      Author(s)
      Erkut, E.
      Alp, O.
      Date
      2007
      Source Title
      Computers & Operations Research
      Print ISSN
      0305-0548
      Electronic ISSN
      1873-765X
      Publisher
      Elsevier
      Volume
      34
      Issue
      5
      Pages
      1389 - 1405
      Language
      English
      Type
      Article
      Item Usage Stats
      247
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      520
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      Abstract
      We consider the problem of designating hazardous materials routes in and through a major population center. Initially, we restrict our attention to a minimally connected network (a tree) where we can predict accurately the flows on the network. We formulate the tree design problem as an integer programming problem with an objective of minimizing the total transport risk. Such design problems of moderate size can be solved using commercial solvers. We then develop a simple construction heuristic to expand the solution of the tree design problem by adding road segments. Such additions provide carriers with routing choices, which usually increase risks but reduce costs. The heuristic adds paths incrementally, which allows local authorities to trade off risk and cost. We use the road network of the city of Ravenna, Italy, to demonstrate the solution of our integer programming model and our path-addition heuristic.
      Keywords
      Cost accounting
      Heuristic methods
      Highway systems
      Integer programming
      Mathematical models
      Population statistics
      Problem solving
      Risk assessment
      Moderate size
      Road networks
      Routing
      Shipments
      Hazardous materials
      Permalink
      http://hdl.handle.net/11693/23474
      Published Version (Please cite this version)
      http://dx.doi.org/10.1016/j.cor.2005.06.007
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      • Department of Industrial Engineering 758
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