Phase I Assessment of Guardrail Length-of-need

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Roadside Design Guide

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Gravel Roads

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The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies t

Small Sign Support Analysis, Phase I

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This report describes a series of full-scale vehicular crash tests conducted to evaluate the impact performance of small sign supports used by the Arizona Depar

Guardrail Performance and Design

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Barrier installations are warranted (or justified) only at highway locations where the consequence of an errant vehicle leaving the roadway is judged to be more