Evaluation of origin-destination matrix estimation techniques to support aspects of traffic modeling.

PDFTech ReportOrigin and destinationTrip matricesTravel demandTraffic modelsTraffic forecastingTrip generationMethodologyAlabamaAlabama. Dept. of TransportationAnderson, MichaelWilson, JeffreyKhan, TahminaUniversity of Alabama. Dept. of Civil and Environmental EngineeringUS Transportation CollectionTravel demand forecasting models are used to predict future traffic volumes to evaluateroadway improvement alternatives. Each of the metropolitan planning organizations (MPO) inAlabama maintains a travel demand model to support planning efforts. For smaller areas, non-MPOs, no travel demand models exist to support planning efforts. The goal of this project is toexamine the use of a methodology that can utilize existing traffic counts to developorigin/destination matrices in an attempt to improve existing travel demand models and supportthe development of new travel demand models in areas that are too small to maintain their ownmodels. Applying the methodology to develop the origin/destination matrix for a communityfrom existing traffic counts has the potential to be used to evaluate area friction factors, be usedto support the development/refinement of trip generation models and determine the level ofexternal-internal and external-external traffic