How Does Photo Radar Work?

Answer

Photo radar is a combination of a camera, radar, and a computer. It's used to record the date, time, speed and location of the violation. Photo radar is used at red lights to catch those that drivers that fail to stop at a red light. Once the sensor senses the light is red, a camera will capture the image of any vehicle that crosses the line.
Q&A Related to "How Does Photo Radar Work?"
The photo has nothing to do with the actual speed determination. If they are using LIDAR - the time of flight of laser pulses is used to make a series of measurements of vehicle position
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i don't the answer
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So, how does HDTV work? Let's look at the technology behind the hi-def signal. Crystal clear television pictures came into clear view with the advent of high definition TV. Analog
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A laser speed gun measures the round-trip time for light to reach a car and reflect back.
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