Comparison of Laser-Based and Sand Patch Measurements of Pavement Surface Macrotexture
Publication: Journal of Transportation Engineering
Volume 138, Issue 2
Abstract
This study compares the results of two measurement methods for pavement surface macrotexture: the ASTM E965 sand patch volumetric method and the Digital Surface Roughness Meter (DSRM, laser technique) conducted at a total of 13 different paved road sites in metropolitan Clark County, Nevada. Least-squares regression of DSRM-measured mean profile depth (MPD) on sand patch mean texture depth (MTD) was statistically significant (, ), with DSRM estimates within 0.1 mm of sand patch in 58 of 61 cases. The magnitude of the DSRM coefficient of determination was similar to that reported by previous writers for the laser Circular Track Meter.
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Acknowledgments
This research was supported by Department of Air Quality and Environmental Management (DAQEM), Clark County, Nevada. The authors thank Dr. Norbert Maerz of MaGaNa Instruments for technical support and Mr. Russell Merle and Mr. Rodney Langston of DAQEM for assistance with logistics and road barricades, and UNLV’s Transportation Research Center staff members for their assistance during the field work.
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Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 138 • Issue 2 • February 2012
Pages: 176 - 181
Copyright
© 2012 American Society of Civil Engineers.
History
Received: Aug 17, 2010
Accepted: Jun 10, 2011
Published online: Aug 15, 2011
Published in print: Feb 1, 2012
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