C45 Come Back Alive

From start to finish, I've only seen four to five cars on this road. With such a small amount of traffic, how could such a place be congested with cars?

If there was a traffic accident and the road was congested, at least I'd have to see the car and the scene, and I didn't see either.

Obviously, this time the ghost woman didn't hit me, but the woman in the driver's seat in front of me