Alaskan Study Found Road Weather Information Systems (RWIS) Can Reduce Fatal and Serious Winter Crashes by 36 Percent. METHODOLOGY Statistical modeling and analysis were conducted using crash, weather, traffic, and roadway geometry data from 26 RWIS-equipped segments across approximately 1,030 miles. The winter crash… Content type Benefit Date Posted 05/28/2025 Taxonomy (ARC-IT) Weather Information Processing and Distribution (WX02) Geolocation links Alaska, United States