The problem is the difficulty of accounting for the very subtle tradeoffs that shippers make in their decisions between the various service measures that characterize the different modal offerings. Transit time for a shipment is traded off against cost, reliability, loss and damage probabilities, and equipment availability. Shippers apparently view these tradeoffs differently depending on their size, the commodity being shipped, and the points of origin and destination. It is therefore not enough to come up with a simple model of the transport rates and assume that the shipper will take the least-cost alternative. What is needed, then, are mathematical models that will predict the choices that will be made by individual shippers when faced with a given situation. The models should be empirically based with coefficients that have captured the tradeoffs actually made by particular shippers in real situations. The models should incorporate as variables all those factors that influence the choices that were made, from the service measures in which transport performance is measured to the characteristics of the commodity being shipped, the markets involved, and the receivers' use of the product. The development and use of such a model is described. (TRRL)

  • Authors:
    • Roberts, P O
    • CHIANG, Y S
  • Publication Date: 1984

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Filing Info

  • Accession Number: 00389237
  • Record Type: Publication
  • Source Agency: Institute for Road Safety Research, SWOV
  • Files: ITRD, TRIS
  • Created Date: Nov 30 1984 12:00AM