Work Zone Traffic and Safety Committee / Work Zone Traffic Safety Committee / Safety Committee / Iowa Division / Iowa Department of Transportation / office of Local Systems / /
Person
Tracy Scriba / San Lee / Dahir Egal / Jerry Roche / Dan Sprengeler / Jennifer Symoun / /
Position
author / contractor / ATSSA Traffic Control Design Specialist / ATSSA representative / unit manager / and his assistant / ATSSA Traffic Control Supervisor / engineer / assistant / /