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Open AccessArticle

Effects of Vehicular Speed on the Assessment of Pavement Road Roughness

Department of Civil, Construction and Environmental Engineering, Sapienza University of Rome, 00184 Rome, Italy
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(9), 1783;
Received: 6 March 2019 / Revised: 10 April 2019 / Accepted: 23 April 2019 / Published: 29 April 2019
(This article belongs to the Special Issue Asphalt Materials)
Good ride quality is a fundamental requirement for all road networks in modern countries. For this purpose, it is essential to monitor and evaluate the effect of irregularities on road pavement surfaces. In the last few decades, many roughness indices have been proposed, with the aim to represent shortly the pavement surface characteristics and the relative performances, using a single number and a correspondent scale of values. In this work, a comparison between three different evaluation methods (International Roughness Index, ISO 8608 road profile classification and frequency-weighted vertical acceleration awz according to ISO 2631) was carried out, applying these methods to some real road profiles. The similarities and differences between the obtained results are described, evaluating the effect of the road characteristic speed on the roughness thresholds. In fact, the specific aim of the analyses is to underline the need to use different thresholds depending on the speed at which the vehicular traffic can travel on the road sections. In this way, it will be possible to identify appropriate thresholds for the various types of roads, having for each of them a specific range of design or operating speed. View Full-Text
Keywords: pavement roughness; assessment methods; threshold limit; vehicular speed pavement roughness; assessment methods; threshold limit; vehicular speed
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Loprencipe, G.; Zoccali, P.; Cantisani, G. Effects of Vehicular Speed on the Assessment of Pavement Road Roughness. Appl. Sci. 2019, 9, 1783.

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