摘要: The Indiana Department of Transportation has sponsored the design andimplementation of a decision support system for routing highway maintenance vehicles--the Computer Aided System for Planning Efficient Routes (CASPER). Designed ... 展开 The Indiana Department of Transportation has sponsored the design andimplementation of a decision support system for routing highway maintenance vehicles--the Computer Aided System for Planning Efficient Routes (CASPER). Designed for solving multiobjective route design problems, CASPER has been used by agency personnel to design routes for winter maintenance vehicles with significant results: cost savings of more than $9 million to the State of Indiana through more efficient use of materials, equipment, and personnel, while at the same time significant improvement in overall level of network and public service. CASPER integrates (1) an extensive spatial network database (GIS/CAD), (2) a models base consisting of multiobjective search heuristics and network algorithms, and (3) a template-driven and highly interactive user interface. 收起