Evaluation of stochastic models of parallel road tracks

Research output: Contribution to journalArticle

Abstract

In road roughness literature different stochastic models of parallel road tracks are suggested. A new method is proposed to evaluate their accuracy, by comparison of measured parallel tracks and synthetic parallel tracks, realized from a stochastic model. A model is judged accurate if synthetic and measured roads induce a similar amount of fatigue damage to a vehicle. A lack-of-fit measure is assigned to the evaluated models, facilitating a quick and simple comparison. The uncertainty of the vehicle fatigue indicated for the measured profile is considered in the definition of the lack-of-fit measure. A bootstrap technique is applied to estimate the uncertainty. (c) 2007 Elsevier Ltd. All rights reserved.

Details

Authors
  • Klas Bogsjö
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Probability Theory and Statistics

Keywords

  • road roughness, vehicle fatigue, stochastic processes, model evaluation
Original languageEnglish
Pages (from-to)362-370
JournalProbabilistic Engineering Mechanics
Volume22
Issue number4
Publication statusPublished - 2007
Publication categoryResearch
Peer-reviewedYes