City Sioux Falls State South Dakota Country United States Geo Type Region Latitude 43.55 Longitude -96.70
At a work zone in South Dakota, a speed monitoring and display system reduced the number of speeding passenger vehicles and trucks by as much as 25 and 40 percent respectively. FINDINGSAnalysis of the vehicle types (number of axles) data and the traffic volume data indicated the influence of these factors could be applied equally to the before and after data, thus theā¦ Content type Benefit Date Posted 03/05/2007 Taxonomy (ARC-IT) Speed Warning and Enforcement (TM17), Work Zone Management (MC06), Traffic Incident Management System (TM08), Reduced Speed Zone Warning / Lane Closure (VS09) Geolocation links Sioux Falls, South Dakota, United States