When Yellow Means Stop: Deciphering RRFB Light Color

When Yellow Means Stop: Deciphering RRFB Light Color

The studies have proven it: rectangular rapid flashing beacons (RRFBs) work. Yield rates can be as high as 96% where RRFBs are installed. That’s a huge increase when yield rates are as low as 18% with a simple painted crosswalk. If RRFBs are working that effectively...
RRFB IA 21

RRFB IA 21

Learn What’s New in IA-21 vs. IA-11 On March 20, 2018, the Federal Highway Administration issued Interim Approval 21 – Rectangular Rapid-Flashing Beacons at Crosswalks in the Manual on Uniform Traffic Control Devices (MUTCD). The Basics IA-11 is no longer valid:...
The History of the RRFB

The History of the RRFB

MR. R.D. JONES – INVENTOR OF THE RRFB (RECTANGULAR RAPID FLASHING BEACON) In 2018, Mr. Richard D. “Rick” Jones decided to sell his patents to Carmanah Technologies Corp. so that Carmanah could disclaim these patents. By disclaiming the patents, Mr. Jones’ lifesaving...