you should add a subsection under “car on the shoulder” for “right shoulder” or “left shoulder”. this helps in big cities where the highways are quite large. If someone is on the right shoulder it doesn’t affect the people in the left lane. but if i can’t see 300 feet ahead of me in the left lane, and there’s someone in the left shoulder, it affects everyone that’s flying on the left lane, as well as other cars on the roadways. just a thought.