BS 7853:1996

Committees responsible
National foreword
Introduction
Method
1 Scope
2 Normative references
3 Definitions
4 Symbols
5 Uniform method of reporting
Annexes
A (informative) Example of a report
B (informative) Road profile characterization and
     PSD fitting
C (informative) General guidance for the use of the
     statistical road profile description
D (informative) Considerations for PSD processing and
     precision
E (informative) Bibliography
Tables
1 Symbols
2 Centre frequencies and cut-off frequencies for PSD
     smoothing, expressed in spatial frequency n
B.1 Symbols
B.2 Centre frequencies and cut-off frequencies for PSD
     characterization in octaves
C.1 Symbols
C.2 Road classification
C.3 Geometric mean and limits of the displacement PSD
     for different classes of roads as a function of
     the octave bands
C.4 Geometric mean and limits of the r.m.s. displacement
     for the roughness for different classes of roads as
     a function of the octave bands
D.1 Symbols
D.2 Example of the relationship between the different
     parameters, the bias error and the random error
     for different measuring situations
Figures
A.1 Non-smoothed PSD of track 1
A.2 Smoothed PSD of track 1
A.3 Non-smoothed PSD of track 2
A.4 Smoothed PSD of track 2
C.1 Relationship between time frequency and spatial
     frequency as a function of vehicle speed
C.2 Classification of roads
D.1 Bias error for second-order system response
D.2 Random error and bias error for peaks with 0,01
     cycles/m half-power bandwidth

Specifies a uniform method of reporting measured vertical road profile data for either one-track or multiple-track measurements. Applies to the reporting of measured profile data taken on roads, streets and highways, and off-road terrain.