Mannheim Road is a six lane highway that travels through low to middle class commercial suburbs at a speed limit 10 MPH less than what it should be is one out of control speed trap. Stone Park is byfar the worst. Just put your cruise control on 30( even in the 25-30% portion of Mannheim which is 35.) and set up your camera phone or video camera in the back seat taping straight ahead with the speedometer clearly visible in the corner. I did that and got out of a couple tickets. It was in the morning and the cops seemed to have hang overs. One came up to me and said I was going fifty-something in a thirty. He was stuttering. In general, Mannheim Road is a road you must avoid completely. These are revenue hungry run down suburbs. Wait til’ they get just enough to buy a speed camera or two! Take the tri-state tollway(294) or first Avenue.