Texturing of Concrete Pavements (2009) / Chapter Skim
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Abbreviations and Acronyms
Abbreviations and Acronyms
Pages 96-97
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and SP) IRI International Roughness Index ISO International Standards Organization Leq Equivalent sound level Lmax Maximum sound level L4 Texture profile level of the 4-mm octave band L10 Sound level that is exceeded 10 percent of the time L63 Texture profile level of the 63-mm octave band MPD Mean Profile Depth Abbreviations and Acronyms
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From page 97... ...
97 MTD Mean Texture Depth NMAS Nominal Maximum Aggregate Size OBSI On-Board Sound Intensity OF Meter Outflow Meter OFT Outflow Time PCC Portland Cement Concrete PI0.0 Profile Index using zero blanking band PSD Power Spectral Density RMS Root-Mean Square SAE Society of Automotive Engineers SI Sound Intensity SP Speed number associated with International Friction Index SPB Statistical Pass-By SPL Sound Pressure Level SPM Sand Patch Method SRTT (ASTM) Standard Reference Test Tire TCB Trailer Coast-By TO Texture Orientation TR Texture Ratio WP Wheelpath
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