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A radar speed gun, also known as a radar gun, speed gun, or speed trap gun, is a device used to measure the speed of moving objects. It is commonly used by police to check the speed of moving vehicles while conducting traffic enforcement , and in professional sports to measure speeds such as those of baseball pitches , [ 1 ] tennis serves , and ...
Jeremy Dunn (Laser Technology Inc.) developed a police lidar device in 1989, [3] and in 2004 10% of U.S. sales of traffic enforcement devices were lidar rising to 30% in 2006, [1] given the advantages of lidar it appears likely that the majority of current sales are lidar, although sophisticated radar units are still being sold.
This low-cost detector has impressive range and all the requisite features, including GPS for low-speed false-alert muting, manual marking of up to 100 known radar locations, and speed-camera alerts.
The town of Swindon abandoned the use of fixed cameras in 2009, questioning their cost effectiveness with the cameras being replaced by vehicle activated warning signs and enforcement by police using mobile speed cameras: [53] in the nine months following the switch-off there was a small reduction in accident rates which had changed slightly in ...
Gatso speed camera. Speed limits are enforced on most public roadways by authorities, with the purpose to improve driver compliance with speed limits.Methods used include roadside speed traps set up and operated by the police and automated roadside "speed camera" systems, which may incorporate the use of an automatic number plate recognition system. [1]
"PoliScan speed" stationary system in Berlin. PoliScan speed is a system for traffic enforcement made by Vitronic. The measurement is based on lidar (light radar). By time-of-flight measurement, a scanning laser determines speeds and positions of all vehicles in the measurement area. PoliScan speed is available as a mobile or a stationary system.
Flock's most popular products, the Falcon and Sparrow, are cameras which monitor traffic and photograph the rear of all passing vehicles. Their software uses artificial intelligence to read the vehicles' license plates and identify other distinguishing visual characteristics, sending that information to a central server via cellular network. [13]
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