Precision Estimates of AASHTO T 242

National Academies of Sciences, Engineering, and Medicine

doi:10.17226/23017

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Precision Estimates of AASHTO T 242

(2009)

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TRB’s National Cooperative Highway Research Program (NCHRP) Web-Only Document 142: Precision Estimates of AASHTO T 242 examines precision estimates for AASHTO (American Association of State Highway and Transportation Officials) T 242, “Frictional Properties of Paved Surfaces Using a Full-Scale Tire.”

Contributor(s): National Academies of Sciences, Engineering, and Medicine; Transportation Research Board; National Cooperative Highway Research Program

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Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2009. Precision Estimates of AASHTO T 242. Washington, DC: The National Academies Press. https://doi.org/10.17226/23017.

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Publication Info

8.5 x 11 | DOI: https://doi.org/10.17226/23017

Chapters		skim
Front Matter	i-viii
CHAPTER 1- INTRODUCTION AND RESEARCH APPROACH	1-3
CHAPTER 2- RESULTS OF ANALYSIS AND ESTIMATES OF PRECISION	4-29
CHAPTER 3- CONCLUSIONS AND RECOMMENDATIONS	30-32
REFERENCES	33-33
APPENDIX A- TTI INITIAL STATE SYSTEM MEASUREMENTS AND THE CORRESPONDING STATISTICS	34-36
APPENDIX B- TTI FINAL STATE SYSTEM FRICTION MEASUREMENTS AND THE CORRESPONDING STATISTICS	37-46
APPENDIX C- TRC ARRIVAL STATE SYSTEM MEASUREMENTS AND THE CORRESPONDING STATISTICS	47-53
APPENDIX D- TRC DEPARTURE STATE SYSTEM FRICTION MEASUREMENTS USING 501 TIRE AND THE CORRESPONDING STATISTICS	54-72
APPENDIX E- TRC DEPARTURE STATE SYSTEM FRICTION MEASUREMENTS USING 524 TIRE AND THE CORRESPONDING STATISTICS	73-82

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