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.

Josh WIlliams 0 476 Article rating: 4.0

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.

ATSSA explores importance of infrastructure for autonomous vehicles at ITS America

Session to highlight pavement markings, work zones, signage, and uses for vehicle fleet data

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Preparing Infrastructure for Automation Levels 1-3” will examine areas within roadway infrastructure that will be affected with the emergence of Connected and Automated Vehicles (CAVs).

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