Use of Dynamic Traffic Assignment in FSUTMS in Support of Transportation Planning in Florida [Summary]

Summary.PDFBooklet/PamphletBDK80 977-12Traffic assignmentDynamic traffic assignmentDynamic modelsMathematical modelsSimulationFloridaFlorida. Dept. of TransportationHadi, MohammedFlorida International UniversityFlorida. Dept. of TransportationNTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic Control DevicesNTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic FlowNTL-PLANNING AND POLICY-PLANNING AND POLICYUS Transportation CollectionTransportation planning is based on the physicalstructure of roadway networks and, lesstangibly, on choices individuals make about theirtransportation needs and use of the roads. For atask this complex, computer modeling is essential.In Florida, transportation planning often usesthe Florida Standard Urban Transportation ModelStructure (FSUTMS) to provide a consistency ofdata and approach. Currently, demand forecastingin FSUTMS uses static traffic assignment, in whichproperties of transportation networks, such astravel times and flow rates, are constant overtime and drivers are described homogeneously.Dynamic traffic assignment (DTA) could greatlyadvance FSUTMS by allowing scenarios in whichtransportation measures vary with time anddrivers are treated as individuals, permitting newlevels of detail and precision, thus supportingbetter demand and performance forecasting