Correspondence between ICAO ACN Overload Criteria and Cumulative Damage Factor Calculations

Criteria for overload evaluation of airport pavements are contained in International Civil Aviation Organization (ICAO) documents Annex 14, Attachment A and the Aerodrome Design Manual Part 3, and are stated in terms of the amount the ACN of an overload airplane can exceed the listed PCN of the pavement. But most modern airport pavement design procedures define the level of pavement deterioration in terms of cumulative damage factor (CDF). A mathematical relationship between an increment of ACN and an increment of CDF is derived so that overload operations evaluated by a CDF-based design procedure can be compared directly with the ICAO criteria. The relationship states that, if the allowable value of the ACN of an overload aircraft relative to the PCN of the pavement is taken to be given by, for example, a ratio of 1.1, then this represents an allowable change in CDF of approximately 0.5 due to the addition of an overload aircraft relative to the design condition of CDF = 1. The numerical value of the ratio of change of CDF to change of ACN varies with the sensitivity of the CDF-based design procedure to changes in airplane loading. The relationship can be calibrated for the CDF-based design procedure if desired.


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Media Info

  • Media Type: Digital/other
  • Features: Figures; References;
  • Pagination: 13p
  • Monograph Title: 2010 FAA Worldwide Airport Technology Transfer Conference: Next Generation of Airport Technology

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Filing Info

  • Accession Number: 01608081
  • Record Type: Publication
  • Files: TRIS, ATRI, USDOT
  • Created Date: Aug 15 2016 12:42PM