Development of Serviceability Level (SL) Index Model for Extended Airport Pavement Life

Details

• Creators:
  Ashtiani, Ali Z ; Amos-Binks, Adam ; Murrell, Scott ; Duah, Ebenezer ; Williams, Aaron R.
• Corporate Creators:
  Applied Research Associates, Inc.
• Corporate Contributors:
  United States. Department of Transportation. Federal Aviation Administration. Airport Engineering Division
• Subject/TRT Terms:
  Design Life Indexes Machine Learning PA40 Pavement Performance Performance Measurement Serviceability Service Life
• Publication/ Report Number:
  DOT/FAA/TC-25/36
• DOI:
  https://doi.org/10.21949/9zvd-vr65
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final Report
• Contracting Officer:
  Brill, David
• Corporate Publisher:
  United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center
• Abstract:
  The Federal Aviation Administration (FAA) initiated the Extended Airport Pavement Life (EAPL) program to evaluate and enhance the long-term performance of airport pavements, aiming to extend their service life beyond the 20-year current standard considered in pavement thickness design. The FAA collected extensive pavement performance data - including surface groove geometry, longitudinal profile roughness, and surface distresses - from 22 major U.S. airports. The data included both flexible and rigid pavements. Data analysis shows that pavements designed to fail structurally in 20 years often remain structurally intact but exhibit functional failure sooner than the intended design life. It was found that with effective routine and preventive maintenance, pavements can remain serviceable well past their original design life. To quantify this extended serviceability, the FAA introduced the serviceability level (SL) index, a combined measure of structural integrity and functional condition that indicates a pavement’s suitability for aircraft operations. Supplementary data from each airport was gathered by the FAA to support the analysis, including material characterizations, pavement cores, maintenance histories, runway usage, and weather data. All data have been consolidated in a dedicated database, PA40.
• Format:
  PDF
• Funding:
  692M15-22-T-00028
• Collection(s):
  FAA Technical Library
• Main Document Checksum:
  urn:sha-512:9b077b84583c8e6445264bab33fe5a6af193572192a75a456027fe59d5b7a223522b59363d06a33f8b59897931930de9c886d84cbfe37b2e9bc0f16a79e89cae
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/88898/dot_88898_DS1.pdf
• File Type:
  [PDF - 4.99 MB ]