signs. An eight-month study conducted by Tucson found HAWK signals increased driver compliance, which had been 30 percent, to 93 percent. Similarly, the Texas Transportation Institute found in a study that the HAWK signal achieved 97 percent motorist compliance. Currently, NJDOT is working on installing a HAWK signal on Route 27 in Roselle.
The HAWK signal, however, is not compatible with the current 2003 edition of the MUTCD, deviating from standards because the beacon signal remains dark until activated by a pedestrian. The MUTCD requires that full traffic signals (red-yellow-green) must remain on at all times. The HAWK system also deviates from current MUTCD standards through its use of an alternating red indication. Typically, alternating flashing is reserved for warnings at draw bridges, as emergency beacons, and in railroad crossing signals.
What is a Rapid Rectangular Flashing Beacon?
A Rapid Rectangular Flashing Beacon, or RRFB, consists of solar-powered, high intensity LED beacons mounted under crosswalk signs at uncontrolled crosswalks. Normally dark, the RRFB when activated by a pedestrian flashes rapidly in a wig-wag pattern similar to that used on emergency vehicles. Pedestrians push a button to activate the LED flashers,