STP/APP: Speed feedback signs and trailers are listed under both the Engineering and Enforcement options. What is the difference?
A. Under Engineering, fixed (installed in the ground) speed feedback signs are eligible. The option under Enforcement is for portable speed feedback devices and trailers, those that can be re-located as necessary. In both cases, these devices must be used within a 2 mile radius of the school, and solely for school zone speed enforcement efforts.