United States Department of Transportation
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Small Sign Support Analysis: Phase III: Benefit/Cost Analysis
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1988-08-01
[PDF-2.70 MB]
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Abstract:Guidelines were developed to assist ADOT in (1) determining if an existing sign installation, not in compliance with current safety standards, should be replaced by a system that does meet the safety standards, and (2) selecting a cost effective sign support for new installations. A benefit/cost (B/C) program, developed at TTI was used to develop the guidelines. Existing systems that were analyzed included single and multiple post installations for both square steel tubes (ADOT P2 systems) and 3 lb/ft high carbon steel U-posts. Systems that were considered as candidates for new installations and for upgrading existing systems include installations with up to three 3 lb/ft high carbon steel U-posts with an improved short ground splice, standard steel pipe with a uni-directional slip base, and hollow rectangular sections of laminated veneer lumber. This report is one of three reports prepared in the subject project. The other two are: Small Sign Support Analysis: Phase I - Crash Test Program; and, Phase II - Development of a New Small Sign Support (two volumes)
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