Highway Friction Measurements with MU-Meter and Locked Wheel Trailer

Gallaway, Bob M.; Rose, Jerry G.

i

Highway Friction Measurements with MU-Meter and Locked Wheel Trailer

1970-06-01
By Gallaway, Bob M. ; Rose, Jerry G.

File Language:

English

Details

Creators:

Gallaway, Bob M. ; Rose, Jerry G.
Corporate Creators:

Texas Transportation Institute. Texas A&M University
Corporate Contributors:

Texas Highway Department ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

138-3
Resource Type:

Tech Report
Geographical Coverage:

Texas ; United States
Corporate Publisher:

Texas Transportation Institute. Texas A&M University
Abstract:

Friction tests at 20, 40, 60, and 80 mph, on wet and dry surfaces using smooth and treaded tires, with 10 and 24 psi tire inflation pressures were taken with a Mu-Meter and the Texas Highway Department research skid trailer. Fifteen pavement surfaces which exhibited widely different friction levels, friction-velocity gradients, drainage capabilities, mineralogical properties, and texture classifications were investigated. Pavement macrotexture tests were conducted by volumetric and mechanical roughness detector methods. Comparisons and relationships between various friction parameters as obtained with both instruments were made. Effects of macrotexture on the friction parameters were also analyzed. Statistical analyses and typical plots are given. The importance of providing adequate drainage in the tire-pavement contact area is stressed. Tests made with smooth and treaded tires in both the slip and skid mode emphasized the importance of pavement surface macrotexture at speeds above about 40 mph.
Format:

PDF
Funding:

2-8-69-138
Download URL:

https://rosap.ntl.bts.gov/view/dot/84798/dot_84798_DS1.pdf
File Type:

[PDF - 2.27 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:d0605e24e19150cc4d3540ac1a429aad60b0c181349cfd0f5f3224cd4a91d22e80cb5cc53bbb8b6106b610196f68e06be875735dd52567697438e2509fd97f14

File Language:

English

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