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LTTP profile variability.
  • Published Date:
    2001-09-01
  • Language:
    English
Filetype[PDF-13.59 MB]


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LTTP profile variability.
Details:
  • Publication/ Report Number:
    FHWA-RD-00-113
  • Resource Type:
  • Geographical Coverage:
  • OCLC Number:
    823319656
  • NTL Classification:
    NTL-HIGHWAY/ROAD TRANSPORTATION-Materials ; NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance ; NTL-HIGHWAY/ROAD TRANSPORTATION-Construction and Maintenance
  • Format:
  • Abstract:
    The Long Term Pavement Performance (LTPP) program has been collecting profile and

    International Roughness Index (IRI) information from more than 2,062 test sections since 1989

    using K.J. Law 690DNC optical sensor Profilometers. Analysis of the IRI data has been limited,

    but with the increasing distribution of the LTPP DataPave software, this data is seeing increasing

    use. In an effort to confirm the quality of LTPP IRI data in the Information Management System

    (IMS) database and to document its variability, LTPP initiated an analysis of IRI variability in

    September 1997. This report documents the results of that study.

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