→Driver Feedback Signs: More explanation of the difference between a Driver Feedback Sign and a Speed Camera.
[http://en.wikipedia.org/wiki/Radar_speed_sign Driver Feedback signs] (a.k.a. radar speed sign, radar sign, Vehicle Activated Sign, Your Speed sign, traffic calming sign, etc.) can be either permanently installed or they may be mounted to a trailer which may be moved between locations.
: [[Image:Speed_feedback_perm.jpeg]] [[Image:Speed_feedback_trailer.jpeg]]