Rest assured that traffic laws enable LEOs to generate quite a fat
revenue stream. If that weren't their intent, they'd show themselves
conspicuously on the highway, not hide behind "billboards" with there
invisible LIDAR guns.





I don't think revenue generation is the main reason for this. The reason
is to try to get people to obey the law ALL of the time, not just when the
cops are visible. If you know they will always be visible, then human
nature generally is to only obey the law when you see the cop. If you
know that they may be hiding anywhere, there is much more incentive to
drive sanely and obey the law ALL of the time rather than just when you
see the cop car.




Some years back I worked for a company that did sales and warranty work for
Kustom Signal, a major producers of high end traffic radars.

When the PD was told it would take a week or two to get their radar back I
was generally hit up for a loaner. The reason given for needing a loaner was
always revenue loss----NEVER traffic safety.

Cheers:

Paul
N1431A