GUIDELINES FOR CONDUCTING AND CALIBRATING ROAD ROUGHNESS MEASUREMENTS
This paper defines roughness measurement systems hierachically into 4 groups, ranging from profilometric methods (2 groups) - being accurate and most amenable to detailed analysis - through response-type road roughness measuring systems (RTRRMS'a) - to subjective evaluation - allowing assessments to be made without use of instruments. The general planning of road roughness measurement programs is outlined, as well as the criteria for selection of measurement system to meet the objective. The procedures for carrying out surveys in the 4 groups of systems are explained, including instrument characteristics, the need for adequate checking verification, and the importance of travelling speed, as well as the methodology for data analysis. The International Roughness Index (IRI) is defined, and the programs for its calculation are provided. The IRI is based on a ratio of the accumulated suspension motion of a vehicle, divided by the distance travelled during the test. The report explains how all rougness measurements can be related to this scale. The IRI therefore emerges as a scale that can be used both for calibration and for comparatives purposes.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/0821305905
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Corporate Authors:
World Bank
1818 H Street, NW
Washington, DC United States 20433 -
Authors:
- SAYERS, M W
- Gillespie, T D
- Paterson, WDO
- Publication Date: 1986
Media Info
- Features: Figures; References; Tables;
- Pagination: 87 p.
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Serial:
- World Bank Technical Paper
- Publisher: World Bank
- ISSN: 0253-7494
Subject/Index Terms
- TRT Terms: Calibration; Instrumentation; Measurement; Profilometers; Roughness; Speed
- Subject Areas: Highways; Pavements; I23: Properties of Road Surfaces;
Filing Info
- Accession Number: 00465457
- Record Type: Publication
- ISBN: 0-8213-0590-5
- Report/Paper Numbers: Technical Paper 46
- Files: TRIS, ATRI
- Created Date: Feb 29 1988 12:00AM