Radar Speed Signs

radar-speed-signs-001Radar speed signs prompt get drivers to slow down. They calm traffic — with none of the negatives associated with speed humps.

The signs display vehicle speed as motorists approach them. On most, signs light up only when drivers exceed speed limits. The higher the travel speed, the faster the lights flash. The feedback makes drivers aware of their speed. The result: they slow down.

Radar speed signs are easy to install and inexpensive to operate. Many run on solar power, eliminating the need for wires. Some models are portable, so they’re easy to move to different locations.


Radar speed signs prompt 35 to 70 percent of speeding drivers to slow down. They’re especially effective where motorists exceed the speed limit by 10 mph or more.

Who sells these?

PEDS endorses radar speed sign technology, not a specific company. Google “radar speed sign” to find vendors.

How to get yours?

Find out your city’s or county’s policy. Some municipalities allow the signs, but require residents or neighborhood associations to pay for them. Elsewhere, the city installs radar speed limit signs only in school zones or other restricted areas.

Call your city or county public works department and ask how you can get a radar speed limit sign installed.