The Last Clear Chance Doctrine (in tort law, not criminal law), which is pretty widely accepted, is that regardless of right of way, if you are able to avoid an accident, then you must.
Having the right of way matters less than the ability to avoid an accident. If you plow into a pedestrian that you saw from three blocks away, you will absolutely be considered liable civilly since you had a clear chance to avoid a collision.
The general rule in almost every vehicle code is that having the right of way does not relieve you of the obligation to do everything reasonable to avoid collisions and injuries.
Having the right of way matters less than the ability to avoid an accident. If you plow into a pedestrian that you saw from three blocks away, you will absolutely be considered liable civilly since you had a clear chance to avoid a collision.
The general rule in almost every vehicle code is that having the right of way does not relieve you of the obligation to do everything reasonable to avoid collisions and injuries.