MATHEMATICAL MODEL OF RUNOFF FROM GROOVED RUNWAYS

A conceptual model of runoff from grooved runways based on a hydraulically equivalent ungrooved surface has been investigated for its capability to simulate flow depths on a runway surface. The specific objective of model development is to predict runoff characteristics for uniform rainfall rates on a 100-foot wide concrete runway, grooved and sloping traversely at 1-1/2 percent. A FORTRAN IV computer program is used to solve the kinematic wave approximation to the shallow water equations which are central to the model. The kinematic wave approximation is employed for various hydraulic roughnesses as predicted from another study using a typical maxrotexture range of 0.01 inch to 0.03 inch. A rectangular groove shape with fixed dimensions is considered at five different spacings. The computer simulation results show that grooving enhances the drainage from the pavement in the form of decreased surface depths. The maximum depth reduction due to grooving is about 19 percent for all rainfall intensities, including the 6 inch per hour maximum in this study. These results are tentative, since an experimental study involving equipment that simulates rain on an indoor slab is presently underway. Qualitative observations of early experimental runs seem to indicate that depth reductions based on computer model runs may be too small.

• Record URL:
  • https://onlinepubs.trb.org/Onlinepubs/trcircular/274/274-005.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00978515
• Supplemental Notes:
  • This paper appeared in transportation Research Circular Number 274, Developments in Aircraft and Airport Compatibility. 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.
• Corporate Authors:

  Transportation Research Board

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  Washington, DC  United States  20001
• Authors:
  • Reed, J R
  • Kibler, D F
  • Agrawal, Sudhir K
• Publication Date: 1984-4

Media Info

• Media Type: Digital/other
• Features: Figures; References;
• Pagination: p. 16-24
• Serial:
  • Transportation Research Circular
  • Issue Number: 274
  • Publisher: Transportation Research Board
  • ISSN: 0097-8515

Subject/Index Terms

• TRT Terms: Airport runways; Computer programs; Depth; Drainage; Mathematical models; Pavement grooving; Runoff
• Old TRIS Terms: Grooves
• Subject Areas: Aviation; Design; Highways; Hydraulics and Hydrology; Pavements;

Filing Info

• Accession Number: 00385678
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Jul 30 1988 12:00AM