Composite Hidden Markov Deterioration Models for Pavement Structure Considering Systematic Sample Dropping

The deterioration process of a pavement is a complex one composed of the deterioration of road surface and the decrease in the load bearing capacity of the pavement. The decrease in the load bearing capacity and the deterioration of road surface influence each other. In this study, such a deterioration process of a pavement can be expressed by using a composite Markov deterioration model. Deterioration states of the road surface are observed through road condition inspections. On the other hand, the decline in a load bearing capacity can be detected with inspections of a falling weight deflectometer (FWD) or the like. In actual cases of road maintenance and repair, these two kinds of inspections are not conducted at the same time, and so these two kinds of inspection data cannot be obtained simultaneously. Therefore a systematic and temporal sample dropping situation of inspection data occurs generally between the road condition inspections and the FWD inspections. This study proposes a method for estimating a composite hidden Markov deterioration model considering such systematic sample dropping, and also discusses the effectiveness of the proposed methodology by applying it to a case of the expressway managed by Nippon Expressway Company Limited.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Illustrations; References; Tables;
  • Pagination: 15p
  • Monograph Title: Proceedings of the 25th World Road Congress - Seoul 2015: Roads and Mobility - Creating New Value from Transport

Subject/Index Terms

Filing Info

  • Accession Number: 01710493
  • Record Type: Publication
  • ISBN: 9782840604235
  • Files: TRIS
  • Created Date: Jun 26 2019 4:30PM