Relationship between Foreign Object Debris, Roughness, and Friction
Publication: Journal of Transportation Engineering, Part B: Pavements
Volume 150, Issue 3
Abstract
The Federal Aviation Administration (FAA) is developing new design procedures to extend airport pavement life beyond 20 years based on the concept of serviceability: the measure of how well a pavement fulfills user expectations. A key element is a new distress megaindex called serviceability level (SL) whose components represent independent aspects of airport pavement serviceability: low foreign object damage (FOD) potential, low skid potential, and smoothness. This research validates the assumption of independence previously used to develop a probability-based form for SL. Independence greatly simplifies the mathematics of the new form, in particular, the ability to decompose a pavement condition model into multiple relatively simple submodels. Friction is shown to not correlate to the other two components. FOD and roughness are conditionally independent with a latent variable of crack and spall density. Conditional independence means the proposed SL formulation is generally valid but requires that FOD and roughness measurements or predictions be made at the same time using the same assumptions.
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Data Availability Statement
All data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
FAA Airport Technology R&D Branch provided the airfield pavement condition information, Mr. James Layton, Manager, and Dr. David Brill, Project Manager. This research was conducted independently of the FAA. It reflects the views of the authors, who are responsible for the facts and accuracy of the data presented. This research does not necessarily reflect the official views or policies of the FAA. It does not constitute a standard, specification, or regulation. The authors thank Mr. Anthony Kuncas, Applied Research Associates, Inc., for reviewing the manuscript.
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© 2024 American Society of Civil Engineers.
History
Received: Feb 3, 2023
Accepted: Mar 12, 2024
Published online: Jun 7, 2024
Published in print: Sep 1, 2024
Discussion open until: Nov 7, 2024
ASCE Technical Topics:
- Air transportation
- Airport and airfield pavements
- Airports and airfields
- Architectural engineering
- Building management
- Continuum mechanics
- Design (by type)
- Dynamics (solid mechanics)
- Engineering fundamentals
- Engineering mechanics
- Friction
- Gravels
- Highway and road design
- Infrastructure
- Mathematical models
- Models (by type)
- Pavement condition
- Pavement design
- Pavement surface roughness
- Pavements
- Serviceability
- Sight distances
- Solid mechanics
- Transportation engineering
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