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The City of Portland, Oregon

Portland, Oregon

Welcome to the official web site of the City of Portland, Oregon

General Information: 503-823-4000

E-mail: cityinfo@portlandoregon.gov

1221 SW 4th Avenue, Room 110, Portland, OR 97204

More Contact Info

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

Accessory Short Term Rental (ASTR) Traffic and Parking Study

Scoping form for an Accessory Short Term Rental (ASTR) Traffic and Parking Study

Loading Demand Study

Scoping form for a Loading Demand Study

Parking Impact Study

Scoping form for a Parking Impact Study

Traffic Impact Study

Scoping form for a Traffic Impact Study