Transportation Impact Studies

Forms used to determine the scope of traffic analyses that may be required as part of a land use application.

Traffic Scope Approval Form

The traffic study overview and approval form that must precede all other traffic scope attachment forms. Email approval forms, and supporting documentation in PDF format, to PBOTDevRevTrafficScopes@portlandoregon.gov.

Transportation and Parking Demand Management (TDM) Plan Scoping Form

Required for developments of more than 10 dwelling units in commercial/mixed use zones outside of the Central City Plan District. For more information about the requirement: https://www.portlandoregon.gov/transportation/75487