Double Bottom Truck Accidents on Interstate 90: Project Report

The increasing use of double trailer trucks on the nation's highways has raised concerns about their safety, especially as compared to the more common single-trailer trucks. The purpose of this study was to examine the accident rate of double-trailer, often known as double-bottom trucks as compared to single-trailer trucks on the Snoqualmie Pass portion of Interstate-90. Unfortunately, accurate data concerning truck accidents and truck volumes could not be developed from current data sources.
Publication Date: 
Tuesday, September 1, 1987
Publication Number: 
WA-RD 134.1
Last modified: 
10/12/2016 - 15:42
Edward D. McCormack.
Washington State Transportation Center (TRAC)
Number of Pages: 
Accident analysis, Accident rates, Data collection, Highway safety, Tractor trailer combinations, Traffic volume, Truck accidents, Truck drivers, Truck traffic, Trucking safety, Trucks.