Road roughness is gaining increasing importance as an indicator of road condition, both in terms of road pavement performance, and as a major determinant of road user costs. This need to measure roughness has brought a plethora of instruments on the market. The International Road Roughness Experiment (IRRE) covered two categories of instruments - profilometers, which measure the longitudinal elevation profile of the road and converts this into a roughness index, and response type road roughness measuring systems (RTRRMS's), which integrate readings of the device into an instrument specific numeric. The analyses demonstrated a good correlation between the RTRRMS's, and between the RTRRMS's and profilometer records, and showed that they could all be calibrated to a single roughness scale without compromising their accuracy.
Details
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Author
Sayers, Michael W Gillespie, Thomas D Queiroz, Cesar A.V
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Document Date
1986/01/31
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Document Type
Publication
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Report Number
WTP45
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Volume No
1
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Total Volume(s)
1
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Disclosure Date
2010/07/01
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Doc Name
The International Road Roughness Experiment (IRRE) : establishing correlation and a calibration standard for measurements
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Keywords
Loan to Turkey;operation of waste stabilization ponds;water supply and sanitation;types of road surface;road roughness;surface type;vehicle operating cost;road roughness measurement;measurement methods;road user cost;urban sanitation planning;water supply program;tropical forest regions;agriculture and forestry;
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Citation
Sayers, Michael W Gillespie, Thomas D Queiroz, Cesar A.V
The International Road Roughness Experiment (IRRE) : establishing correlation and a calibration standard for measurements (English). World Bank technical paper ; no. WTP 45 Washington, D.C. : World Bank Group. http://documents.worldbank.org/curated/en/326081468740204115/The-International-Road-Roughness-Experiment-IRRE-establishing-correlation-and-a-calibration-standard-for-measurements