Going west on Rt 12 just past the Rt 183 exit and a car dealership there are lines painted just in front of a consulting business. The 45 MPH speed limit is noted on a downhill incline just before the Rt 183 overpass and onramp.
One car parks at the side of the business and times vehicles, then anywhere from 2 to 4 Reading marked vehicles are sitting on the Rt 422 onramp to pull over speeding vehicles.