Traffic Impact Analysis (TIA)

What is a Traffic Impact Analysis / Study?

A Traffic Impact Analysis (TIA), or Traffic Impact Study, is an analysis of existing or projected future conditions to assess the conditions of the roadway network. Typically, a TIA is used as a planning tool to evaluate the impacts of a proposed development on the surrounding roadway network. Based on the evaluation results, roadway improvements may be needed to mitigate the additional traffic demands.

Currently, the Town requires a TIA for new or redevelopments that generate 150 or more peak hour trips or 1,500 or more daily trips. The Town may also require a TIA to obtain a Town Driveway Permit.

For information on TIA study requirements, processes and procedures, see Chapter 14 of the Town Zoning Ordinance and the TIA Process and Procedures Manual.