Dear Portland (and greater Portland metropolitan area) drivers:
Unlike 4-way intersection stop lights, when you approach an exit onramp with ‘car queueing’ stop lights, you don’t need to stop if THEY AREN’T ON.
If you do happen to stop when the lights aren’t on, don’t sit there confused and wait for a green. You’ll be waiting a long time, as will the honking people behind you.
A honking person behind you