Using a handheld data collection unit, Brandi Boderick of the Colorado DOT records information for a sign that is illegally located, i.e., advertising for a good located on a separate land parcel. Most of the time, sign owners voluntarily comply with CDOT notices of violations; only rarely do these issues result in litigation. Photos: Don Talend
Colorado's DOT is creating a single database of the state's billboards using handheld GPS units optimized with GIS software, customizable GeoAge software, and a comprehensive Microsoft Access database. Unlike many other wireless devices, the Topcon GMS-2 unit records GPS coordinates for the database.