Question
Download Solution PDFWhich of the following devices is used to measure speed of a moving vehicle?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
LIDAR gun
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LIDAR stands for Light Detection and Ranging.
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It uses laser pulses to measure the distance between the device and a moving vehicle.
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By calculating how quickly the distance to the vehicle changes, it accurately measures vehicle speed.
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Widely used by traffic enforcement agencies to detect speeding vehicles.
Additional Information
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Weigh bridge — Measures the weight of a stationary vehicle, used mainly in freight and transport regulation.
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Noise meter — Measures the sound level in decibels, used in environmental monitoring to control traffic noise.
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Loop detector — Installed in road surfaces to detect vehicle presence or count vehicles, but does not directly measure speed unless used with additional systems.
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