Speed and space1 of 2
What is Oregon's Basic Rule regarding driving speed?
The answer
Answer: A. Oregon's Basic Rule requires you to drive at a speed that is reasonable and cautious for current conditions, including weather, traffic, road surface, and visibility. Even if you are under the posted speed limit, you can be cited if your speed is unsafe for conditions. Driving at the maximum posted limit on wet or icy roads may still violate the Basic Rule.
Source: Oregon Driver Manual (2026-2027) — Speed Regulations, p. 19