Airport Pavement Roughness Criteria
The objective of this research project is to develop practical procedures for
measuring and characterizing the roughness of runways and taxiways. An essential
part of this effort is the definition of a profile index that characterizes the
level of roughness encountered by aircraft using the airport pavements. Key
tasks that have already been completed include: development of profiling
equipment; field measurements of runway profiles at airports; data reduction and
profile identification; computer simulations and development of index
TASK COMPLETION: 2008
PRODUCT OF THE BOEING COMPANY:
- Convert Profile Format Profile data file conversion program (zip).
Performs the same function as MakeSplineFit (see below) but includes more options and
file formats. A batch mode was added on March 1, 2011.
Airport Pavement Roughness with Nighttime Construction
Gordon F. Hayhoe, Mingyao Dong, Roy D. McQueen
Surface elevation profiles were measured before and after overlay operations on runways at two commercial airports in the eastern USA. Both airports had only the one runway. All
of the overlaying was done at night, with the airports opened for normal operations during the day. The profiles were measured with an inertial profiler having software compensation for accelerometer errors. Pavement surface elevations measured with normal surveying rod and level equipment are compared with the profiler elevation measurements for one of the runways. Correspondence between the two is good. The profiles were processed to provide measures of roughness from simulations of a straightedge, a California Profilograph, and the Boeing Bump Criteria. Change in roughness due to the maintenance operations is quantified and discussed with respect to minimums.
of changes (Doc)
"ProFAA" is the Federal Aviation Administration's computer
program for computing pavement elevation profile roughness indexes. Data
analysis performed by the program includes the simulation of the following
devices or procedure and the calculation of, Straight Edge, Boeing Bump,
International Roughness Index (IRI), California Profilograph (PI), and RMS
User's Manual (Doc)
Parameters and Word File of Indexes Computation for ProFAA
Three samples profiles for use with ProFAA. The pavements are very smooth,
intermediate, and very rough.
Computation of Profile Index from CA Profilograph Model for ProFAA
MakeSplineFit Profile Data
File Conversion Program (Zip)
A program which reads straight ASCII text files and writes properly formatted *.pro files for input to
"ProFAA". The sample spacing can be changed and the elevation values can be scaled in the program interface. The output file has the same name as the input file except that the extension is changed from .txt to .pro. The output file is put in the same directory as the input file was read from.
The input elevations are fit with cubic splines (continuous elevation and
slope at the sample points) and the output elevations are interpolated.
AC 150/5380-9 "Guidelines and Procedures for Measuring Airport
Advisory circular containing descriptions of the use of the ProFAA and
ConvertProfileFormat programs. Also describes the computation of the Boeing
Bump Index using ProFAA.
OTHER RELATED DOCUMENTATION
ASTM E-17 Mini-Seminar on Airport Pavement Roughness Issues: Current Status
Presentations (Microsoft Powerpoint files):
- Roughness From
the FAA Perspective, Rodney Joel, FAA
Boeing Runway Roughness Criteria, Michael J. Roginski, Boeing
- Aircraft Dynamic Response Due to Runway Roughness, Jack Hagelin, Boeing
Pavement Roughness – Gaps in the Industry, Tony Gerardi, APR Consultants
- Overview of
the ProFAA Software for Roughness Analysis, Gordon Hayhoe, FAA
- ProFAA Screen
Contact Project Lead: Albert