scope:

This recommended practice is a must have for transportation professionals responsible for preparing and reviewing transportation impact analysis studies for new and expanding land developments. This report replaces the proposed recommended practice that was published in December 2005, containing several key updates such as new references and numerous refinements to reflect substantial feedback from the transportation community. The report contains practical guidance to encourage consistency in planning site access, on-site circulation and parking layouts, and mitigation alternatives for off-site improvements. It also addresses key topic areas such as trip generation, distribution and assignment, level of service analysis, and traffic impact analysis report preparation.