The Problem: Mid-Block Crossings Are Dangerous
In the U.S., nearly 75% of all pedestrian fatalities occur at mid-block crossings— locations between intersections where pedestrians often choose to cross because it’s more direct. These crossings may lack stop signs, traffic signals, or other controls that drivers expect, making them especially dangerous.
Drivers aren’t always looking for pedestrians at these locations, and at higher speeds, they have less time to react. A simple crosswalk with painted lines is often not enough to catch a driver's attention or ensure a safe crossing.
The Solution: RRFBs
An RRFB, or Rectangular Rapid Flashing Beacon, is a powerful tool for improving pedestrian safety at these vulnerable mid-block locations.
RRFBs are pedestrian-activated flashing lights mounted below crosswalk signs. When a person wants to cross, the beacon flashes with a bright, high-speed strobe that alerts drivers to stop. The lights are unmistakable, even in poor weather or low-light conditions.
Why RRFBs Work
- Increased Driver Awareness: RRFBs use rapid, high-intensity LED flashes to grab attention. Drivers are far more likely to notice and respond to these lights than to traditional signs or pavement markings.
- Higher Yielding Rates: Studies show that RRFBs can boost driver yielding rates from as low as 15–20% to as high as 98%, depending on road conditions and location.
- Fewer Pedestrian Crashes: According to the Federal Highway Administration (FHWA), RRFBs can reduce pedestrian crashes by up to 47%.
- Cost-Effective: RRFBs are far less expensive than full traffic signals or pedestrian hybrid beacons (PHBs), but they still deliver big safety benefits. The average installation cost is about $14,000.
Best Places to Use RRFBs
- Multilane roads with speed limits under 40 mph
- School zones and parks
- Greenway or trail crossings
- Transit stops or community centers
- Any location with visible pedestrian demand but no traffic signal
A Safer Carrboro, One Crosswalk at a Time
Carrboro—and towns like it—can dramatically improve pedestrian safety by installing RRFBs at key mid-block locations. These beacons not only help reduce crashes, but also make it easier and more inviting to walk safely through our community.