SDDOT'S enhanced pavement management system : visual distress survey manual [2017]
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SDDOT'S enhanced pavement management system : visual distress survey manual [2017]

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  • English

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    • NTL Classification:
      NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance ; NTL-PLANNING AND POLICY-Management Systems ;
    • Abstract:
      In 1993, the South Dakota Department of Transportation initiated the Research Project SD93-14, Enhancement of South Dakota’s Pavement Management System. As the Research Project progressed, it was determined that to better evaluate the condition of the pavement, a more detailed distress survey needed to be performed by SDDOT. The Research Technical Panel identified the failure mechanisms for pavements that were prevalent and would trigger a rehabilitation or reconstruction project in South Dakota. The Technical Panel and Deighton Associates staff then decided on categories of severity and extent for each distress. The extents and severity levels were based upon those given in the Strategic Highway Research Program’s (SHRP) Distress Identification Manual for the LongTerm Pavement Performance Project 1993 Edition. A few modifications were made to better reflect conditions seen in South Dakota. The consultant then developed a process to collect data on the condition of the pavement based upon individual distresses. At present, faulting, roughness and rut depth are collected by the Office of Transportation Inventory Management staff with a Fugro road profiler. All other distresses are currently collected by a visual distress survey performed by seasonal staff of the Office of Project Development. All distresses are collected by sections, the majority of which have a length of 0.250 mile. 1995 was the first year that the visual distress data had been collected on a statewide basis. The distress for Longitudinal Cracking in PCC pavement was added in 2008. This is part of a requirement for the HPMS data submittal. The distress of Continuous Reinforced Concrete Paving (CRCP) Block Cracking was added as a new distress in 2016. This distress was identified as a new failure mechanism in CRCP built after 1995 and is now part of the Pavement Management analysis. A project has been initiated that will hopefully lead to collecting pavement images with a specialized van travelling at highway speed. The visual pavement distress rating would then be performed in the office using these images and automated methods. Some changes in the rating procedure may result by the change in data collection methods.
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