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The authors present a framework for a geographic information systems (GIS)–based decision support system (DSS) designed to provide online routing instructions in response to updated information on traffic and weather conditions for vehicles transporting hazardous materials. Embedded within the DSS is a heuristic that exploits a spatially and temporally rolling horizon. The heuristic is implemented using standard, widely available tools to facilitate adoption by decision makers. The DSS's ability to dynamically update instructions in response to real-time information is demonstrated along the corridor between the metropolitan areas of Washington, D.C., and Baltimore, Maryland.
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Kim et al. (2011) studied this question.
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