Oregon Department of Transportation, Highway Division

Rule Rule 734-020-0490
Conditions of Approval

The following conditions apply when installation of a traffic signal has been approved:


A traffic signal warrant shall be met within three years after construction when a traffic signal is constructed as part of a roadway improvement project.


A traffic signal warrant shall be met within one month after the traffic signal is put into operation when a traffic signal is being constructed to accommodate additional traffic from a public or private development. If it is projected that a warrant will be met at a later time, operation of the traffic signal should be correspondingly delayed.


All approaches to a traffic signal controlled intersection must be signalized, unless a traffic engineering investigation shows that signalizing a minor public or private road is not justified.

Last accessed
Jun. 8, 2021