Auto Flagger

Highway workers are often active in areas with vehicles traveling at high speeds. Some methods for improving worker safety involve separating workers from traffic, including the use of buffer spaces and barriers. Flaggers are often located closest to the on-coming traffic in order to direct traffic. The Automated Flagger Assistance Device (AFAD) is a portable system that can be used to control traffic during lane closures on two-lane highways thus replacing human flaggers. The AFAD used in this project is built into a truck-mounted attenuator (TMA) truck, thus providing protection for the AFAD operator who sits in the truck. The goal of this project is to perform a field verification and a driver behavior study of the effectiveness of an AFAD configuration for Missouri Department of Transportation (MoDOT). In addition to worker protection, this AFAD also has the potential benefit of greater visibility by using a large changeable message sign and the TMA checkerboard panel.