Drew, Donald R. with Allan D. Chasey, Jesus M. de la Garza and Wonkyu Kim, "System Dynamics Model of a State Highway Management System", 1996
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A System Dynamics Model of a State Highway management System (HMS) is developed to serve as an instrument for guiding policy-making planning, budgeting, and programming for the Virginia Department of Transportation (VDOT). The HMS consists of five subsystems and a Management Information System (MIS) to determine model parameter values. Results of the simulation runs can be obtained according to existing procedures and trends, impacts of alternative economics forecast, budget sizes, budget allocations, programming allocations between construction and maintenance, and various allocations within maintenance.