This report discusses the effectiveness of using variable message signs (VMS) and in-vehicle traffic advisory systems (IVU) on a mountainous pass (Snoqualmie Pass on Interstate 90 in Washington state) for changing driver behavior. As part of this project, variable message and variable speed limit information were placed along a 61-km segment of I-90 between North Bend, Wash., and Cle Elum, Wash., where I-90 passes over the Cascade mountains through Snoqualmie Pass. The signs, which were implemented during the winter of 1997-98, provided weather and roadway information to motorists with the intention of reducing the number and severity of accidents.
TravelAid Summary Report
2002
30 pages
Report
No indication
English
Transportation & Traffic Planning , Transportation , Human Factors Engineering , Motorist aid systems , Changeable message signs , Variable message signs , Driving simulators , Driver behavior , Washington(State) , Accident research , Speed limits , Road conditions , Weather , Snoqualmie Pass , Cascade Mountains
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