Determination of the appropriate use of pavement surface history in the KDOT life-cycle analysis process.

Details

• Creators:
  Hallin, John ; Smith, Kelly L. ; Titus-Glover, Leslie
• Corporate Creators:
  Applied Research Associates
• Corporate Contributors:
  Kansas. Dept. of Transportation. Bureau of Materials & Research
• Subject/TRT Terms:
  • Life cycle costing
  • Service life
  • Pavement performance
  • Pavement design
  • Pavement maintenance
  • Pavements
  • Life cycle costing
• Publication/ Report Number:
  KS-08-4
• Resource Type:
  Tech Report
• Geographical Coverage:
  Kansas
• Edition:
  Final report
• Corporate Publisher:
  Kansas. Dept. of Transportation
• Abstract:
  The primary objective of this study was to evaluate KDOT’s pavement surfacing history and recommend ; whether or not the department’s life-cycle cost analysis (LCCA) procedure should include a surfacing history ; component, and, if so, how the LCCA process should be revised/ updated to incorporate surfacing history. ; An analysis using KDOT’s databases demonstrated that they could be used to estimate performance of ; new or reconstructed pavement lives for use in the LCCA process. For the predominant pavement types used ; in Kansas, full-depth asphalt concrete (FDAC) and doweled, jointed plain concrete (JPC-D), service lives were ; estimated to be 12 years and 20 years, respectively. These compare with 10 years and 20 years currently being ; used. ; The impact of modifying the service lives for FDAC and JPC-D pavements was evaluated using the LCCA’s ; of 12 recent KDOT construction/reconstruction projects. The LCCA’s were obtained and re-computed using lifecycle ; models formulated from results of the performance analyses conducted for FDAC and JPC-D pavements ; and for maintenance and rehabilitation (M&R) treatments applied to them. The resulting life-cycle costs were ; then compared with those computed by KDOT. It was found that modified performance lives resulted in only a ; negligible change in the overall NPV for both pavement types on the 12 projects evaluated. ; Three alternative methods for computing future rehabilitation costs for use in LCCA were presented and ; evaluated. One method, which utilizes a cost-to-own approach, warrants further evaluation and development. The ; advantage of the cost-to-own approach is that it does not require modeling of the service lives of the pavement ; being studied. It appears the cost data to perform this type of analysis are available in the KDOT data base.
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• Format:
  PDF
• Funding:
  10159
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/16655/dot_16655_DS1.pdf
• File Type:
  [PDF - 4.00 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:842271689a62b5799d0fa8e12e70423af4c311a4722dcdc008ace39ddbfc850a