One of several routes that used 2nd Av to reach east end districts was the 58 GREENFIELD. Routes 55, 56 and 57 used the foreground trackage. Hands up if you remember the days of Plaid Stamps and Green Stamps, and all the tacky merchandise you could get if you collected 17,000 books full (well, it always seemed that many)!!
Pittsburgh no longer has commuter trains and Johnstown no longer has trolleys, but light rail remains strong in Pittsburgh. Mr. Rogers would be pleased.