The WisDOT Geodetic Survey Unit has developed a Wisconsin Continuously Operating Reference Stations (WISCORS) Network consisting of permanent GPS sites, which provide real-time correctors to mobile users. Mobile users properly equipped to take advantage of these correctors can survey in the field to the 2-cm accuracy level in real-time.
The Wisconsin Height Modernization Program (HMP) is designed to improve the density of geodetic control stations listed in the National Spatial Reference System (NSRS) with accurate orthometric heights (elevations). The Wisconsin Dept. of Transportation (WisDOT), in cooperation with the National Geodetic Survey (NGS), initiated a program in 1998 to improve the height data throughout the State.
The Wisconsin DOT in cooperation with the National Geodetic Survey is hosting a gathering of experts to discuss regional height modernization issues on September 24-25.
WisDOT/NGS cooperative program could complete improved height data by 2008.