Does the car traveling on the freeway have to yield to the car getting on the freeway from an on ramp?
According to the state's Department of Licensing manual, drivers already on the roadway have the right of way. That means the driver entering the freeway will have to yield to them or adjust their speeds to safely merge into the existing flow.
Troopers tell me that drivers already on the road should, if they safely can, move over to make room for merging traffic. However, those drivers are not required by law to do so. It's a pure courtesy and safety move. If there is an accident, the driver entering the flow of traffic would be at fault.
The National Safety Council recommends that if there are more than 2 lanes on your side of the highway that you use the second lane from the right unless actually positioning to exit the highway. This leaves the right lane available for easy merging of entering and exiting traffic.
March 25 2015 I drove to Skagit Valley to photograph the sunrise from behind a tulip field.
Driving across I 205 bridge from Portland OR to Vancouver WA.
No great sunset but lots of different cloud formations on
Thursday. The clouds eventually enveloped the entire mountain view.