while automobiles are the intended users of the roadways, they are not the sole users of the road. this is the legal definition in illinois.

roads that were once intended for horses now are intended for autos. and it will evolve into something else in due time.

go to your DMV and get a rules of the road. many states clump bikers in with pedestrians. and there in lies your argument. you wouldn't plow over someone walking, but a biker is somehow different?!