yielding distances have also been shown to increase at rates comparable to the St. Petersburg results.
In New Jersey, NJDOT is planning to install a RRFB system on Route 4 in the Elmwood Park/Fairlawn vicinity to allow pedestrians to access the Broadway train station and Park & Ride, which are located on opposite sides of the road. A RFFB will also be installed on Route 27 in Woodbridge at the Metropark train station.
Like the HAWK signal, the RRFB does not meet current MUTCD standards which require round warning beacons that flash approximately once per second and are located within 12 inches of the warning sign they supplement. However, the FHWA has issued an interim approval for the use of RRFBs as warning beacons under limited conditions.
Advantages and Disadvantages
While full traffic signals are the highest form of traffic control, they are not always the right solution for pedestrian safety. New traffic signals are very expensive and must be warranted or they can cause more harm than good. At crossings where full signals aren’t warranted, HAWKs or RRFBs could provide a good solution. However, as with full traffic signals, HAWK signals and RRFBs also come with advantages and disadvantages.