Development of a model for estimating International Roughness Index from pavement distresses

Roughness of a stretch of pavement represents the collective effect of various distresses at a point of time. Several researches and agencies have developed models to predict roughness based on distresses. However, most of them have not considered a few common distresses usually present on the primary and secondary road networks in the developing countries. In this study, an attempt has been made to develop a relationship between roughness and noticeable distresses commonly observed on Indian roads such as cracking, potholes, patching, rutting and ravelling. All these distresses have been considered in terms of extent and severity. The model is based on pavement distress data collected over 39.5 km length of road of different functional classes such as National Highways, State Highways and Major District Roads in Rajasthan state of India.


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  • Accession Number: 01495861
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 4 2013 1:34PM