How can an operator use "visual estimation" in conjunction with RADAR?

Using "visual estimation" in conjunction with RADAR involves comparing the observed motion of a vehicle with the speed reported by the RADAR unit. This method enhances the accuracy of the readings obtained from the RADAR by providing a means of cross-checking them against the operator's own visual assessment.

When an operator visually estimates the speed of a vehicle, they use their experience and perception to judge the speed based on how fast the vehicle appears to be moving in comparison to markers, such as roadside objects or other vehicles. By confirming this visual assessment with the numerical data from the RADAR, the operator can verify that the readings are consistent and reliable. If there is a significant discrepancy between the visual estimation and RADAR reading, it may prompt further investigation into the accuracy of the radar device or the conditions under which it was used.

In contrast to this approach, relying solely on RADAR data without visual corroboration can lead to misunderstandings or misinterpretations, particularly in complex traffic situations. Therefore, visual estimation serves as a valuable supplemental tool, ensuring greater confidence in speed enforcement practices.