I am advised:
(1) The purpose of the NSW mobile speed camera program is to deter motorists from speeding at all times, not only when they see speed enforcement.
Best practice evidence shows that this is achieved through less visible enforcement, operating randomly across a large number of locations. This unpredictability of speed enforcement that could occur any time or anywhere, encourages drivers to comply with speed limits at all times. This reduces the risk of a speed-related crash across the entire road network, and associated trauma.
(a) This is a matter for the Minister for Finance and Small Business.