UPDATE: March 22, 2018 Carmanah has purchased and disclaimed all patents on the RRFB, allowing the FHWA to reinstate it as an interim-approved product; the RRFB may be installed by following Interim Approval 21. See our press release for details. LEARN YOUR NEXT STEPS...
Leading Manufacturer of Speed Displays Connects Latest Findings With Observational Reports Showing SpeedCheck Radar Speed Signs Increase School Zone Safety PORTLAND, Oregon – The effectiveness of radar speed signs at slowing traffic and increasing school zone safety...
Multiple research findings show devices particularly effective at slowing traffic around school zones, work zones and other danger areas Portland, Oregon – SpeedCheck radar signs have proven to be one of the most effective means of slowing traffic and increasing...
