As a kid, I lived along one of the main travel routes from points north to Florida. In the spring and fall we were always getting people going the wrong way on divided highways and one way streets. Learned early to assume that someone was coming the wrong way -- always check for that. There is a one-way street I use a lot that has construction at one end now, for some reason a lot of people have been going the wrong way on it as a result. The people on the cross streets barely check for traffic coming the right way, I have been seeing a lot of close calls with the wrong way traffic.