Safety Effectiveness of the Rectangular Rapid Flashing Beacon

Details

• Corporate Creators:
  United States. Department of Transportation. Federal Highway Administration
• Corporate Contributors:
  United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center
• Subject/TRT Terms:
  Benefit Cost Analysis Crash Modification Factors Flashing Beacons Traffic Safety
• Publication/ Report Number:
  FHWA-HRT-25-086
• Resource Type:
  Brief
• Right Statement:
  Public Domain
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Transportation. Federal Highway Administration
• Abstract:
  The Federal Highway Administration conducted a safety evaluation of rectangular rapid flashing beacons (RRFBs), including developing crash modification factors (CMFs) and benefit-to-cost (B/C) ratios. The RRFB includes two rapidly-flashed rectangular-shaped yellow indications, each with a light-emitting diode-array based pulsing light source that flashes in a prescribed pattern and sequence placed beneath a crossing warning sign at uncontrolled approaches (figure 1). The RRFBs emphasize the crossing sign at marked crosswalks on uncontrolled approaches, attracting drivers’ attention from a greater distance and giving drivers a longer response time. Several studies reported increases in driver-yielding rates after RRFB installation. However, additional studies using crashes to evaluate the safety benefits of RRFBs are needed.
• Format:
  PDF
• Collection(s):
  Federal Highway Administration
• Main Document Checksum:
  urn:sha-512:547695bfde4d14e894c68b1a90c0621e67a655b3cb951edd64f00d92169e649328753d4b5089f7dfe72dc72d300caa944016d5ebded7f782809c8fed2720295f
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/88645/dot_88645_DS1.pdf
• File Type:
  [PDF - 490.78 KB ]