THE ARTIFICIAL GENERATION OF ROAD SURFACE TOPOGRAPHY BY THE INVERSE FFT METHOD
Techniques are presented for the digital simulation of the height profiles of a number of correlated parallel tracks and of an entire two-dimensional random road surface. It is shown that the profiles of a number of correlated tracks may be generated by using the one-dimensional discrete Fourier transform, but, in order to generate a fully isotropic surface, it is necessary to use two-dimensional Fourier transform methods and these are discussed in detail. A sample two-dimensional isotropic road surface is generated from an experimentally determined one-dimensional spectral density and its one-dimensional statistics are compared with those of the original displacement data. For the covering abstract of the conference see TRIS 395019. (Author/TRRL)
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/9026504616
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Supplemental Notes:
- Papers from the Proceedings of the 8th IAVDS Symposium, the Dynamics of Vehicles of Roads and Railway Tracks, held at Massachusetts Institute of Technology, Cambridge, Massachusetts, August 15-19, 1983.
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Corporate Authors:
Swets & Zeitlinger
Heereweg 347B
2161 CA Lisse, Netherlands -
Authors:
- Cebon, D
- NEWLAND, D E
- Conference:
- Publication Date: 1984
Media Info
- Features: Figures; References;
- Pagination: p. 29-42
Subject/Index Terms
- TRT Terms: Conferences; Density; Digital computers; Electromagnetic spectrum; Fourier transforms; Isotropy; Mathematical models; Rutting; Simulation; Surface course (Pavements); Surfacing; Wear
- Uncontrolled Terms: Longitudinal profile
- Geographic Terms: United Kingdom
- ITRD Terms: 8525: Conference; 5908: Density; 8673: Digital computer; 5917: Isotropic; 2825: Longitudinal profile; 6473: Mathematical model; 3081: Rutting (wheel); 9103: Simulation; 6776: Spectrum; 2972: Surfacing; 8119: United Kingdom; 5293: Wear
- Subject Areas: Highways; Pavements; I23: Properties of Road Surfaces;
Filing Info
- Accession Number: 00395020
- Record Type: Publication
- Source Agency: Institute for Road Safety Research, SWOV
- ISBN: 90-265-0461-6
- Files: ITRD, TRIS
- Created Date: Oct 31 1985 12:00AM