United States Department of Transportation
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Edition:Final Report
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Abstract:This report was prepared under the “Improvement and Operation of the Vermont Travel Model” contract with the Vermont Agency of Transportation (VTrans) for the 2015-2016 year (Year 8) of the contract. The primary objective of the project is to continue maintaining the Vermont Travel Model, ensuring that it remains a comprehensive, effective predictor of travel behavior of Vermonters. The purpose of this report is to document the activities which were completed in Year 8 of the contract to improve the functionality and currency of the Model. Other activities undertaken in Year 8 of the contract using the Model to support VTrans efforts, particularly analyzing the effects of construction traffic controls on regional flows, are documented separately. The Vermont Travel Model is a series of computer sub-models which uses the land use and activity patterns within Vermont and its neighboring urban areas to estimate a typical day of travel behavior. Origin and destination matrices are created which describe the number of expected trips between geographical areas, known as traffic analysis zones (TAZs). Accommodations are made for commercial-truck trips and the occupancy characteristics of passenger vehicles. The final outputs are traffic volumes by roadway link in the statewide roadway network. The Model currently includes 946 TAZs and 5,600 miles of highway-network links.
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