ATSSA Blog

FHWA issues interim approval of Rectangular Rapid-Flashing Beacons at crosswalks

The new IA-21 allows for the optional use of RRFBs as pedestrian-activated visibility enhancements for pedestrian and school crossing warning signs under limited conditions.

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In a memorandum released on March 20, the Federal Highway Administration (FHWA) issued “Interim Approval (IA)-21 – Rectangular Rapid-Flashing Beacons (RRFBs) at Crosswalks.” The new IA-21 allows for the optional use of RRFBs as pedestrian-activated visibility enhancements for pedestrian and school crossing warning signs under limited conditions.

Omnibus bill reinstates Clearview Font Interim Approval

Newly reinstated font that was designed for easier readability was prohibited by FHWA in 2016

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For Fiscal Year 2018, the bill directs the Federal Highway Administration (FHWA) to issue an Interim Approval (IA) for the Clearview font, which was originally designed to increase readability at long distances and at night for motorists. 

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