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  2. Lidar traffic enforcement - Wikipedia

    en.wikipedia.org/wiki/LIDAR_traffic_enforcement

    Lidar has a wide range of applications; one use is in traffic enforcement and in particular speed limit enforcement, has been gradually replacing radar since 2000. [1] Current devices are designed to automate the entire process of speed detection, vehicle identification, driver identification and evidentiary documentation.

  3. Speed limit enforcement - Wikipedia

    en.wikipedia.org/wiki/Speed_limit_enforcement

    The Locomotive Acts in the UK set speed limits for vehicles, and later codified enforcement methods. The first Locomotive Act, passed in 1861, set a speed limit of 10 miles per hour (16 km/h) in uninhabited areas, and 5 miles per hour (8.0 km/h) within towns. This act also included the value of fines for violations of the law.

  4. Lidar - Wikipedia

    en.wikipedia.org/wiki/Lidar

    Lidar speed guns are used by the police to measure the speed of vehicles for speed limit enforcement purposes. Additionally, it is used in forensics to aid in crime scene investigations. Scans of a scene are taken to record exact details of object placement, blood, and other important information for later review.

  5. Radar speed gun - Wikipedia

    en.wikipedia.org/wiki/Radar_speed_gun

    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 ...

  6. Rules of the Road: 25 mph is too fast. Is there a lower speed ...

    www.aol.com/rules-road-25-mph-too-030000807.html

    Without a local alley speed limit law, does it default to the state law of 25 mph? The law I referenced actually opens with a broader requirement: “No person shall drive a vehicle on a highway ...

  7. Radar detector - Wikipedia

    en.wikipedia.org/wiki/Radar_detector

    Newer speed detection devices use pulsed laser light, commonly referred to as LIDAR, rather than radio waves. Radar detectors, which detect radio transmissions, are unable to detect the infrared light emitted by LIDAR guns, so a different type of device called a LIDAR detector is required.

  8. About those ‘advisory’ speed limits on curves? They are more ...

    www.aol.com/news/those-advisory-speed-limits...

    Question: Something that has not made sense to me since I started driving (49 years ago) is the apparent discrepancy in the posted speed limit (for example 50 mph) and the cautionary speed signs ...

  9. VASCAR - Wikipedia

    en.wikipedia.org/wiki/VASCAR

    VASCAR (Visual Average Speed Computer And Recorder) is a type of device for calculating the speed of a moving vehicle. The first VASCAR device was created in 1966 by Arthur Marshall. [ 1 ] It is used by police officers to enforce speed limits , and may be preferred where radar or lidar is illegal, such as some jurisdictions in Pennsylvania ...