Talk:Radar speed sign

Effectiveness

Where are the references for the effectiveness studies?

Irradiating

Regarding the following:

 The use of radar to detect automobile speeds is also irradiating pedestrians and people in the neighborhood.
 None of the companies who sell these signs address the impact on people walking by or playing near one of their signs.

Where is this concept of irradiating coming from? Is there any data to back up this claim? There's probably more "radiation" in my neighbors motion detection controlled lights...

In fact, here's information from the ["Commonwealth of Virginia RF Radiation Exposure Compliance Plan"]

 Speed measuring radar equipment most generally operates in the 10, 24, and 35 GHz
 bands at power levels of 100 milliwatts or less. The NRCP recommends that no part of the body
 should be closer than 30 cm from the radiating end of the device, or said another way, from the
 front of the device. In practice, it is a good idea to be totally in back of the device, as the radiated
 beam can diffuse somewhat to the sides. Short exposures in front of the device, for example to
 calibrate the device, should not be harmful. In addition, because the eyes may be particularly
 susceptible to radio frequency energy at these frequencies, one should never look into the front of
 the device at close range while it is operating.

I'm removing the block on the main page about irradiation...