S.R. CEN/TR 15874:2009

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

Defines minimum performance criteria but otherwise is designed to be as inclusive as possible with regard to technology.