|Researcher:||New Hampshire Department of Transportation|
Road Weather Information Systems (RWIS) are intended to help highway agencies respond more timely and efficiently to inclement weather conditions. By improving its ability to predict the timing and intensity of storms and by improved monitoring of the condition of the road surface, the Department can more efficiently schedule its maintenance crews and allow for improved deployment of anti-icing and de-icing strategies. Initial research at NHDOT was designed to review available RWIS equipment and systems and to demonstrate the effectiveness of selected systems on New Hampshire highways. During the winters of 1997-98 and 1998-99, the New Hampshire Department of Transportation evaluated the state-of-the-art of RWIS equipment and forecasting services under actual field conditions at a test site on the Little Bay Bridge in Newington. The winter maintenance strategy of the responsible maintenance crew was positively influenced by the RWIS during the second year of operation and certain critical improvements were identified to make the RWIS more effective. A demonstration project at the same site built on the earlier results and contributed to statewide deployment of 11 new stations during the 2005-06 winter.
For more information contact the NHDOT Research Engineer at (603) 271-3151