We have stairways that are marked on the map as a road. I've had my in car GPS tell me to drive down at least two of them, and across a bridge that is not only not there but never was there( but the road on both sides is the same name.)

Look at downtown Pittsburgh, it has two grids that start from the rivers that come together at the point, and if you want to go above Grant Street for get it. As we say "If you want to get from here to there the road will be under construction or one way the wrong way. No matter which way you want to go.

Outside the city we use to joke that the road crew would follow a cow and where ever the cow went is where the road would go.

I had someone give me directions to turn at the Hays barn, It burnt down in 1969. The road that I had to turn on is a new road built in the last two years.