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2. Radar detector - Wikipedia

   en.wikipedia.org/wiki/Radar_detector

   An early radar detector Car radar detector (Japanese) A radar detector is an electronic device used by motorists to detect if their speed is being monitored by police or law enforcement using a radar gun. Most radar detectors are used so the driver can reduce the car's speed before being ticketed for speeding.

3. Blind spot monitor - Wikipedia

   en.wikipedia.org/wiki/Blind_spot_monitor

   Optical blind spot detector on side mirrors. The blind spot monitor or blind-spot monitoring is a vehicle-based sensor device that detects other vehicles located to the driver’s side and rear. Warnings can be visual, audible, vibrating, or tactile. [1] [2] Blind spot monitors may do more than monitor the sides and rear of the vehicle. They ...

4. Lidar traffic enforcement - Wikipedia

   en.wikipedia.org/wiki/LIDAR_traffic_enforcement

   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.

5. These 8 Radar Detectors Are the Ticket to More Informed Driving

   www.aol.com/lifestyle/8-best-radar-detectors...

   DFR7. 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 ...

6. Speed limit enforcement - Wikipedia

   en.wikipedia.org/wiki/Speed_limit_enforcement

   Gatsometer claims to have developed the first radar for use with road traffic in 1971, but this claim is undermined by evidence that radar detectors were already for sale in 1967. [13] Gatsometer BV produced the world's first mobile speed traffic camera in 1982. [13] [14] VASCAR was in use in North Carolina, New York and Indiana by February ...

7. Vehicle blind spot - Wikipedia

   en.wikipedia.org/wiki/Vehicle_blind_spot

   The blue car's driver sees the green car through the mirrors but cannot see the red car without turning to check the blind spot (the mirrors are not properly adjusted) As one is driving an automobile , blind spots are the areas of the road that cannot be seen while looking forward or through either the rear-view or side mirrors (expecting that ...