Traffic Impact Analysis (TIA) and Forecasting Future Traffic Needs: Lessons from Selected North Carolina Case Studies
2017
Pulugurtha, Srinivas S. | Mora, Rakesh
The focus of this paper is to conduct an evaluation of selected traffic impact analysis (TIA) casestudies, review current practice, and recommend procedures that could be adapted to better forecastand plan future traffic needs. Lessons from the evaluations indicate that considering regional trafficgrowth rate, peak hour factor (PHF), heavy vehicle percentage, and other off-site developmentswould yield relatively better TIA forecasts. Incomplete development with vacant parcels wasobserved at several case sites, possibly due to the state of the economy. Therefore, conductinganalysis assuming multiple “build out” years (say, three and five years based on the magnitude ofthe development) as complete build out years would help state and local transportation agenciesplan and better allocate resources based on the need.
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