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Logistics and transportation decision support systems rely on models of travel distance for evaluating scenarios and estimating costs. This paper presents a new method to model travel distances that combines the accuracy of shortest path travel with the simplicity of a distance approximation. The distance approximation was developed and tested in a geographic information system (GIS)‐based decision support system for snow removal and disposal in Montreal, Canada.
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Campbell et al. (2001) studied this question.
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