Special Report - Transportation Research Board, National Research Council, Issue 211 |
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Contents
HISTORICAL AND REGULATORY BACKGROUND | 17 |
USE CHARACTERISTICS AND COST IMPACTS | 63 |
HIGHWAY CONDITION OPERATIONS AND DESIGN IMPACTS | 157 |
Copyright | |
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48-ft semitrailers AASHTO accident involvement accident rates addition allow American analysis annual apply Association average axle bridge California capacity carriers changes characteristics combination combination trucks combination-truck common carriers compared comparisons configuration costs Department of Transportation differences distance distribution doubles drivers effects estimates expected experience factors fatal federal FHWA Figure freight greater handling higher highway impact improved increased industry Interstate involvement rates lanes large trucks larger length less limits load longer major maximum Michigan miles million nationwide operating overall passing pavement percent performance possible primary programs reduced regions regulations relative reported Research restrictions result roads routes rural safety segment semitrailers severity shoulders single speeds standard statistically System Table terminals tractor tractor-semitrailers traffic turning twin trailer trucks twins and tractor-semitrailers types U.S. Department urban vehicle wear weight limits wide width