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An Investigation on Longitudinal Unevenness Indicators and Their Potential on Surface Characterisation
In the new European standard, EN 13036-5, several methods have been introduced in order to quantify the longitudinal unevenness. International roughness index (IRI), waveband analysis (NBO) and the weighted longitudinal profile (BLP) are the methods which are mentioned in the European standard. These methods have been introduced in the Swiss standard in 2017 in addition to the previous Swiss method, known as angle value W. The main objective of this paper is to utilise these indicators with real measured profile data in order to assess each of the aforementioned methods. For this purpose, the measured profile data from different road network types were chosen for the analysis. Initially, the results of analysis of road unevenness from these different sources are compared statistically. The results of this study show that no strong correlation between different longitudinal unevenness indicators exist since these indicators measure different wavelength range, and thus describe different physical phenomena. Therefore, different indicators should be used in order to characterise the surface of the pavement.
An Investigation on Longitudinal Unevenness Indicators and Their Potential on Surface Characterisation
In the new European standard, EN 13036-5, several methods have been introduced in order to quantify the longitudinal unevenness. International roughness index (IRI), waveband analysis (NBO) and the weighted longitudinal profile (BLP) are the methods which are mentioned in the European standard. These methods have been introduced in the Swiss standard in 2017 in addition to the previous Swiss method, known as angle value W. The main objective of this paper is to utilise these indicators with real measured profile data in order to assess each of the aforementioned methods. For this purpose, the measured profile data from different road network types were chosen for the analysis. Initially, the results of analysis of road unevenness from these different sources are compared statistically. The results of this study show that no strong correlation between different longitudinal unevenness indicators exist since these indicators measure different wavelength range, and thus describe different physical phenomena. Therefore, different indicators should be used in order to characterise the surface of the pavement.
An Investigation on Longitudinal Unevenness Indicators and Their Potential on Surface Characterisation
RILEM Bookseries
Di Benedetto, Hervé (editor) / Baaj, Hassan (editor) / Chailleux, Emmanuel (editor) / Tebaldi, Gabriele (editor) / Sauzéat, Cédric (editor) / Mangiafico, Salvatore (editor) / Rossel-Khavassefat, Parisa (author) / Perret, Jacques (author) / Ould-Henia, Mehdi (author) / Delaby, Marc (author)
RILEM International Symposium on Bituminous Materials ; 2020 ; Lyon, France
Proceedings of the RILEM International Symposium on Bituminous Materials ; Chapter: 28 ; 223-229
RILEM Bookseries ; 27
2021-09-26
7 pages
Article/Chapter (Book)
Electronic Resource
English
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