Researchers say Roadside Design Important in Traffic Accident Prevention.

Reporting on 111 fatal accidents in Washtenaw County, Michigan. The researchers said that in their study 84 percent of the accidents were non-intersectional collisions with the majority (60 percent) of accidents being single oar, off-road collisions. In one of five accidents (18 percent) a vehicle invaded the roadway of another by crossing the center line or median, or traveled in the wrong lane on an expresway.