Foreword
1 Introduction
1.1 Background
1.2 Objectives of the road test
2 Brief review of the nature and requirements of the new
standard
2.1 Longitudinal position of measurement records and
sample length
2.2 Lateral position of the measurements on the rail head
2.3 Processing
3 The measurement programme
3.1 The test procedure
3.2 Test sites
3.2.1 Loriol
3.2.2 Wildenrath
3.3 Teams and instruments
4 Comparison of the practices of the teams
4.1 Choice of lateral position
4.1.1 Loriol
4.1.2 Wildenrath
4.1.3 Conclusion on success of the provisions for
identifying the reference surface
4.2 Longitudinal sampling and cleaning the rail head
5 The common analysis applied to the raw data
5.1 Spike processing
5.2 DFT and filtering analysis techniques
5.3 Treatment of long records in which rail-head defects
are present
5.4 Chatter/screech
5.5 Observations made on results presented in Appendices
A and B
5.5.1 Loriol
5.5.2 Wildenrath
5.6 Overall observations
6 Comparisons of roughness spectra
6.1 The datum line spectra
6.2 The 100 m test section results
7 Conclusions
Annex A (informative) - Results from Loriol for all
instruments processed using the common processing
method
Annex B (informative) - Results from Wildenrath for all
instruments processed using the common processing
method
Annex C (informative) - Review of rail-head defects
encountered at Loriol
Bibliography