I love going up this incline when I am in Pitt!
Super easy to park here, get a ticket and head up Mt. Washington for as little or as long as you want. The views on the way up and at the top are super stunning. I actually don't go outside into the observation area next to the incline exit, but I walk a ways down the street to a little area with a statue and open viewpoint. It is a lot more quiet there and not as crowded with people.