How Effective Are Radar Speed Signs?
Radar speed signs are a proven traffic calming technique. Studies repeatedly show that
when alerted by a radar sign, speeders WILL slow down up to 80% of the time.
Typical average speed reductions are 10-20%,
and overall compliance with the posted speed limit will increase by 30-60%.
Take at a look at how our traffic calming techniques demonstrate the effectiveness
of radar speed signs with historical data and the resulting impact from actual radar
sign locations:
All Data collected with
StreetSmart software
Decline in Average Speeds
After 21 months of operation, the radar speed sign continues to be effective
in reducing the average speeds in a 25MPH neighborhood cut-through street.
Average Vehicle Speeds: By MPH Segments
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Shift of Peak Speeds to Lower Speeds
Six months of operation of a radar speed sign on a neighborhood cut through street
demonstrates the effectiveness of the sign in lowering peak speeds to lower speeds.
Peak Speed Shifts: By MPH Segments
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Speed Limit Compliance At Plant Entrance
1.5 years of radar speed sign operation at a plant entrance shows 55% more vehicles obeying posted speed limit (PSL).
Radar Sign Reduces Speeding At Plant By 55%!
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Long Term Reduction In Speeding Drivers
2 years of radar sign operation on a 40 MPH arterial street shows consistent, long-term reduction of speed.
Percent of Vehicles Speeding
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Long Term Reduction In Average Speeds
2 years of radar sign operation on a 40 MPH arterial street shows average speeds maintain drop of 3.5 MPH.
Weekly Average Speeds
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