Macrotexture, which influences vehicle-roadway skid resistance, refers to the texture of the pavement due to the arrangement of aggregate particles. Pavement surfaces are subjected to seasonal variations, and over time the embedded aggregates become polished due to the onslaught of traffic. Research has shown that wet-weather crashes are influenced by the macrotexture of the pavement surface.
The TRB National Cooperative Highway Research Program's NCHRP Research Report 964: Protocols for Network-Level Macrotexture Measurement provides state transportation pavement engineers and other practitioners with recommended protocols for macrotexture test measures, equipment specifications, and data quality assurance practices.
National Academies of Sciences, Engineering, and Medicine. 2021. Protocols for Network-Level Macrotexture Measurement. Washington, DC: The National Academies Press. https://doi.org/10.17226/26225.
|Chapter 1 - Introduction||3-23|
|Chapter 2 - Macrotexture Measurement Technologies and Parameters||24-41|
|Chapter 3 - Data Collection||42-63|
|Chapter 4 - Data Analysis||64-118|
|Chapter 5 - Conclusions and Recommendations||119-120|
|Appendix - Draft AASHTO Protocols||125-158|
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