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New Reduced price! AASHTO R 20-99 (2008) View larger

AASHTO R 20-99 (2008)

M00001672

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AASHTO R 20-99 (2008) Standard Recommended Practice for Procedures for Measuring Highway Noise

standard by American Association of State and Highway Transportation Officials, 08/01/1999

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This recommended practice is to provide guidance in acceptable procedures for measuring highway noise levels.