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Models for road surface roughness

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Author

Summary, in English

This study focuses on the statistical description and analysis of road surface irregularities that are essential for heavy-vehicle fatigue assessment. Three new road profile models are proposed: a homogenous Laplace moving average process, a non-homogenous Laplace process and a hybrid model that combines Gaussian and Laplace modelling. These are compared with the classical homogenous Gaussian process as well as with the non-homogenous Gaussian model that represents the road surface as a homogenous Gaussian process with Motor Industry Research Association spectrum enhanced by randomly placed and shaped irregularities. The five models are fitted to eight measured road surfaces and their accuracy and efficiency are discussed.

Publishing year

2012

Language

English

Pages

725-747

Publication/Series

Vehicle System Dynamics

Volume

50

Issue

5

Document type

Journal article

Publisher

Taylor & Francis

Topic

  • Probability Theory and Statistics

Keywords

  • road surface irregularity
  • damage variability
  • Laplace moving averages
  • MIRA spectrum

Status

Published

ISBN/ISSN/Other

  • ISSN: 1744-5159