wikipedia 08 Sep 2007 07:18 pm

Speed trap

Speed trap - Wikipedia, the free encyclopedia
The term speed trap can refer to a point where a speed limit is strictly enforced by police. It may also refer to locations where a speed camera is posted.[1] Alternately, the term may also refer to a speed limit that is enforced by timing how long a vehicle takes to transverse a measured distance. Cities or road sections become known as speed traps where police have a reputation for writing an unusually high number of traffic tickets, especially speeding tickets. Sometimes the posted speed limits are not easily seen; in other places, the limits might be set excessively low. In many of these uses, the term speed trap connotes speed limit enforcement for purposes of ticket revenue or traffic deterrence instead of safety.

Speed traps have been used since the beginning of the 20th century as a means to enforce speed limits, and Britain’s Automobile Association was set up specifically to notify members of such speed traps.[2] More modern examples of speed traps include their usage in the town of Big Cabin, Oklahoma, which raised three-fourths of its revenue from traffic citations, and a significant percentage of that was related to a section of highway where the speed limit dropped from 55 mph to 45 mph.[citation needed] The state of Oklahoma enacted a law in 2004 that penalizes towns where the citation revenue exceeds 50% of the annual budget.[3]

In California traffic law, evidence obtained from speed traps (as specifically defined, see “Speed trap” in California traffic law) is not admissible. Photo enforcement systems for traffic signals may measure vehicle speeds to set the beginning of the yellow signal indication phase. Some courts have ruled that this is not a speed trap.

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