GPSTC Speed Detection Operator Practice Test

Question: 1 / 400

Which of the following can negatively affect the accuracy of speed detection devices?

Operating the device too late

Multiple vehicles in close proximity

Multiple vehicles in close proximity can significantly impact the accuracy of speed detection devices because these devices may struggle to isolate and accurately measure the speed of a single target amidst several moving vehicles. When multiple vehicles are detected in the same area, the technology employed by speed detection devices, such as radar or laser, might pick up signals from more than one vehicle simultaneously. As a result, the device could produce an incorrect speed reading, reflecting a composite of speeds rather than the precise speed of any individual vehicle.

This scenario highlights the importance of ensuring that speed detection is performed in situations where a clear target can be identified, as the presence of several vehicles can lead to confusion and errors in determining which vehicle is being measured. Therefore, the accuracy of the speed readings can be compromised, emphasizing the necessity for operators to apply best practices in vehicle detection to achieve reliable results.

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High vehicle speed

Consistent target speed

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