One of Pittsburgh’s distinctive features is the huge number of public stairways. Many streets that appear on maps are actually stairways, like Eleanor Street here. In the early days of GPS navigation, trip instructions would often send drivers up or down these streets; but most GPS systems have now learned to recognize the streets that can accommodate pedestrians only.
And bicycle cops. To be a Pittsburgh bicycle cop, you have to be able to ride down one of these stairways. If you are still alive at the bottom of it, you’re qualified.
Open Street Map does a good job of showing the public stairways on the South Side Slopes. All the denser red dotted lines are stairways. The narrower, sparser dotted lines are walkways.