Across the United States, cities are increasingly adopting Rectangular Rapid Flashing Beacons (RRFB) as a part of their pedestrian safety initiatives. Since the RRFB gained interim approval from the Federal Highway Administration (FHWA) in 2008, the device has proven to be a valuable addition to crosswalks, helping drivers notice pedestrians and stop well in advance, reducing accidents, and promoting safer streets.
What is an RRFB?
Rectangular Rapid Flashing Beacons are pedestrian-activated (push button, voice-activation or automatically via detection systems). These high-intensity flashing warning lights are installed at uncontrolled pedestrian crossings, often where traditional traffic signals or stop signs are absent. They are mounted alongside pedestrian crossing signs or overhead at crosswalks, alerting drivers to pedestrians attempting to cross.
The “rapid flashing” in their name refers to the unique, irregular flash pattern of the lights, which mimics emergency vehicle warning lights. This pattern is far more attention-grabbing than traditional beacon lights, such as the slower-flashing lights commonly seen in school zones. The effectiveness of RRFBs stems from this distinct flashing pattern, which studies have shown significantly improves driver compliance with yielding to pedestrians.
Benefits of RRFBs
Increased Driver Yielding Rates: RRFBs have been shown to increase the percentage of drivers who yield to pedestrians, particularly in areas where traffic typically moves at higher speeds. According to studies conducted by the Federal Highway Administration (FHWA), driver yielding rates can increase from as low as 20% to up to 98% at crosswalks equipped with RRFBs.
Cost-Effective Solution: compared to installing full traffic signals or pedestrian overpasses, RRFBs are a much more cost-effective way to improve pedestrian safety.
Versatile Application: RRFBs can be used at a wide variety of crossing points, including mid-block crossings, intersections without traffic signals, school zones, and multi-lane roadways. Their adaptability makes them a viable option for both urban and suburban environments.
Energy Efficiency: many RRFBs are solar-powered, making them an environmentally friendly option. This also reduces the long-term operational costs, as there’s no need for extensive wiring or connection to the local power grid.
Improved Pedestrian Confidence: with RRFBs, pedestrians feel safer and more confident when crossing the road, knowing that drivers are more likely to stop. This is particularly beneficial for vulnerable road users, such as children, elderly individuals, or those with disabilities.
What To Look For in an RRFB
While there are many manufacturers on the market today, TraffiCalm remains a leader in the development and deployment of these advanced systems. Noted for their high-intensity LED illumination and robust design, TraffiCalm RRFBs are engineered to meet the rigorous demands of both urban and rural traffic environments. Their design is the standard when it comes down to what you should look for in an RRFB.
1. LED Illumination
TraffiCalm® RRFBs utilize 80 LEDs per light bar, 40 LEDs per side, far more than any competitive system, providing the brightest and most visible beacons on the market. This can be critical with the sun behind or in front of the motorist or in foggy conditions. Auto-dimming reduces the brightness at night. MUTCD and FHWA Compliant.
2. Rugged Electronics, Built to Last
All electronics, radios, and LEDs are fully epoxy-potted and environmentally sealed. The entire pole with the RRFBs, controller or collaborator, solar panels, and batteries can be fully submerged and still operate.
3. Ease of Installation and Operation
Setup and effortlessly configure settings via an app. A mesh network gives the installer the ability to setup and program multiple units at once. Plus, TraffiCalm technical support is top notch.
4. Flexibility
Solar power or AC power.
Push button, voice activation, or presence detection.
Easily retro fit existing signs with a flasher ring, an additional, simple and cost-effective solution to enhance the RRFB. Learn more about Sign Flasher Rings.
The RRFB stands out as a valuable solution to enhance pedestrian safety at uncontrolled crosswalks. Its proven effectiveness, coupled with careful consideration of installation guidelines, makes it a strategic choice for traffic engineers and city planners looking for an efficient, cost-effective solution to enhance pedestrian safety.
