ROAD PROFILE STUDY. FINAL REPORT
This study was undertaken to evaluate the overall usefulness of the Rainhart profilograph as a roughness measuring device, and to determine its ability to profile the roadway surface. Comparison testing was conducted utilizing the profilograph along with the 10-ft. rolling straightedge and the Mays Ride Meter on both portland cement concrete and hot mix asphaltic concrete surfaces. The profiling ability of the profilograph was studied by testing it over a surface with known (induced) areas of roughness. It was found that the digital counters of the profilograph are un-repeatable, and therefore not useable. The profilograph's graphical trace was found to be very repeatable, and when evaluated using a 0.1-in. blanking band, to correlate well with both the 10-ft. rolling straightedge and the Mays Ride Meter. It was determined that in most cases the profilograph produces a graphical trace which closely resembles the actual surface profile of the roadway. Recommendation for the development of profilograph "roughness" specifications and for profilograph utilization are included in this report.
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Corporate Authors:
Louisiana Department of Transportation and Development
1201 Capitol Access Road, P.O. Box 94245
Baton Rouge, LA United States 70804-9245Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- Cumbaa, S L
- Publication Date: 1986-2
Media Info
- Pagination: n.p.
Subject/Index Terms
- TRT Terms: Measuring instruments; Profilographs; Roads; Roughness; Testing
- Uncontrolled Terms: Road profile
- Subject Areas: Highways; Pavements; I23: Properties of Road Surfaces;
Filing Info
- Accession Number: 00475192
- Record Type: Publication
- Source Agency: Federal Highway Administration
- Report/Paper Numbers: FHWA/LA-86/185, Rept No 185
- Contract Numbers: Study No 83-1P(B)
- Files: TRIS, USDOT, STATEDOT
- Created Date: Nov 30 1987 12:00AM