Road roughness is gaining increasing importance as an indicator of road condition, both in terms of pavement performance, and as a major determinant of road user costs. This paper defines roughness measurement systems hierachically into four groups, ranging from profilometric methods (2 groups), through response type road roughness measuring systems (RTRRMS's), and, subjective evaluation. The International Roughness Index (IRI) is defined, and the...
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INFORMATION
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1986/01/31
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Publication
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WTP46
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1
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1
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2002/10/17
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Disclosed
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Guidelines for conducting and calibrating road roughness measurements
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operation of waste stabilization ponds
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