Watch for orange cones beside the highway, and if you look, you can see a police car parked on the Chesterbrook Blvd. overpass before you get there... unless he's facing down the on-ramp, which they do sometimes, too. In typical quota fashion, Tredyffrin cops (My wife any I just refer to them as "Trids") generally run this one toward the end of the month. However, since Tredyffrin Township generates most of their revenue from traffic fines, watch out for "Trids" whenever you're in that area!