Bike Law 101: Guidance for the ‘Dilemma Zone’

Buffered Bike Lane with a bike symbol and arrow pointing forward

[Publisher’s note: Welcome to Bike Law 101, a new column written for BikePortland by Kurt Jansen. Kurt is the Executive Director of the Animated Traffic Law Center. ATLC is a Eugene, Oregon based non-profit that helps organizations with their traffic law education efforts (the City of Portland hired them to create the “Every Corner is a Crosswalk” animation). Each month, Kurt will tackle a tricky bike law with hopes of adding some clarity to a our vehicle code.]

Entering an intersection on a solid yellow light is illegal in Oregon unless you cannot stop in time safely.

It’s a familiar enough scene. You’re on your bike approaching an intersection and the light is green. But, it’s been green for a while now; any second it will go to yellow (or perhaps it already has). Signal engineers call this the “dilemma zone.” Do you blast into the intersection or do you restrain yourself, slow down and wait?

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