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Pavement scores synthesis.
  • Published Date:
  • Language:
Filetype[PDF-1.05 MB]

  • Corporate Creators:
    Texas Transportation Institute
  • Report Number:
  • Resource Type:
  • Geographical Coverage:
  • OCLC Number:
  • Edition:
    Technical report, Nov. 2008-Jan. 2009
  • Corporate Publisher:
    Texas Transportation Institute
  • NTL Classification:
    NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance ; NTL-HIGHWAY/ROAD TRANSPORTATION-Construction and Maintenance ;
  • Format:
  • Description:
    The purpose of this synthesis was to summarize the use of pavement scores by the states, including the

    rating methods used, the score scales, and descriptions; if the scores are used for recommending pavement

    maintenance and rehabilitation actions; how the scores are computed; the distresses that are used for

    generating the scores; the sampling method; the survey frequency; and each state agency’s legislative or

    internal goal.

    The distresses considered and the way they are summarized into indices varies between states. Typically,

    the extent and severity is used for computing scores. In rating distresses, some agencies use the most

    dominant distress present, while other use all the distresses present. For each distress type/severity level,

    criteria are established in terms of the distress index that indicates the need for rehabilitation. In addition,

    how the data analysis results are used varies from state to state. According to the information collected for

    this synthesis, only three states indicated that they have goals set by, or reported to, their respective

    legislatures. Internal agency goals vary from state to state as well.

    Since the scores are computed differently for each state, and since the sampling methods vary from state

    to state, the definition of good or better varies significantly between each state; therefore, direct comparisons

    between scores or percent lane miles in good or better condition between states are not valid.

  • Funding:
  • Supporting Files:
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