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20-3 Effectiveness of Rectangular Rapid Flashing Beacons (RRFBs) at Mid-Block Crosswalks

Project Dates: Jan 1, 2021 - Dec 31, 2022
Project Description:

Rectangular Rapid Flashing Beacons (RRFBs) are intended to improve pedestrian safety by providing supplemental emphasis to marked crosswalks. RRFBs consist of a pair of automatic or pedestrian activated flashing lights installed with a crosswalk warning sign. They are recommended for use in situations where increased visual emphasis is needed to alert drivers to an uncontrolled pedestrian crossing, such as a mid-block crossing. This project will study the design of mid-block crosswalks, collect and analyze data, and report on the findings of how RRFBs are implemented and whether their use is increasing the safety of everyone in the traveled way.

Poster (presented at 2024 Transportation Research Board Annual Meeting):
TRB 2024 RRFB Poster


Factsheet                    Video                    Other

Final Report (March 2023)                   Archived Documents

2022 Symposium Page


James Sullivan, Dana Rowangould and Parsa Pezeshknejad (UVM)

Champion(s)/TAC members:

Jon Kaplan, Ian Degutis, Theresa Gilman


This project has been selected as a 2024 High Value Research (HVR) project by the AASHTO Research Activities Committee. Only 16 projects are chosen each year. This project is also featured in our June 2023 Newsletter. 

**Posters, Fact Sheets, Presentation Recordings and Other Materials are prepared for our September Research and Innovation Symposium each year. This page includes the latest materials. Check back in September for updated materials related to this project.