An economic analysis is summarized that was performed to relate the cost of upgrading airport pavements to the penalty cost associated with adding gears and wheels to aircraft to provide adequate flotation for present-day pavement design criteria. A basic assumption was made that the wide-body jets and a 680-Mg (1.5-million lb) aircraft (categories 1 and 2 aircraft respectively) would use the 26 projected major hub airports by 1985. Three types of gear were designed for categories 1 and 2 aircraft: (a) current, i.e., flotation that is compatible with present pavement criteria; (b) median, a compromise design that considers both present pavement criteria and the optimal gear for aircraft structure; and (c) optimal, a gear optimized for the aircraft structure with no regard for the pavement flotation requirements. Costs were based on each type of gear for both categories of aircraft. Pavement data were surveyed for all 26 projected 1985 major hub airports. Thicknesses for rigid and flexible pavements were determined for categories 1 and 2 aircraft for both new construction and for overlay of selected pavement areas where the aircraft might operate. Aircraft costs were developed as associated with carrying landing-gear masses and volumes in excess of the optimal gear. Pavement-upgrading costs were determined, and cost comparisons were made. Recommendations were presented relative to policy decisions on pavement criteria. /Author/

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    • This paper appeared in TRB Special Report 175, Research in Airport Pavements. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
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    Transportation Research Board

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  • Authors:
    • Griffis Jr, F H
    • Gamon, M A
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  • Publication Date: 1978

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  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 38-42
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  • Accession Number: 00189925
  • Record Type: Publication
  • Files: TRIS, TRB, ATRI
  • Created Date: May 11 1979 12:00AM