EN 12299:2009

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols, units and abbreviations
5 General description
  5.1 General
  5.2 Passenger exposure to vibrations
  5.3 Application
  5.4 Characteristics of railway vehicle motions
  5.5 Ride comfort
  5.6 Direct and indirect measurements
  5.7 Summary table of procedures
  5.8 Application of comfort indices
6 Mean Comfort and Continuous Comfort
  6.1 General
  6.2 Base of the method
  6.3 Methodology
  6.4 Test conditions
      6.4.1 General
      6.4.2 Selection of test sections
      6.4.3 Test speed
      6.4.4 Wheel-rail contact geometry
      6.4.5 Vehicle condition
  6.5 Parameters to be measured
      6.5.1 General
      6.5.2 Location of measuring points
      6.5.3 Filtering
  6.6 Definition of intermediate quantities
      6.6.1 Symbols and indices
      6.6.2 Rms-values of weighted accelerations
      6.6.3 95th and 50th percentiles
  6.7 Definition of comfort indexes
      6.7.1 Continuous Comfort
      6.7.2 Mean Comfort Standard Method
      6.7.3 Mean Comfort Complete Method
  6.8 Test report
7 Comfort on Curve Transitions
  7.1 General
  7.2 Base of the method
  7.3 Methodology
  7.4 Test conditions
      7.4.1 General
      7.4.2 Selection of test sections
      7.4.3 Test speed
      7.4.4 Wheel-rail contact geometry
      7.4.5 Vehicle condition
  7.5 Parameters to be measured
      7.5.1 General
      7.5.2 Location of measuring points
      7.5.3 Filtering
  7.6 Definition of intermediate quantities
      7.6.1 Symbols and indices
      7.6.2 Averaging procedure
      7.6.3 Identification of transition periods
      7.6.4 Intermediate quantities
  7.7 Definition of comfort index P[CT]
  7.8 Test report
  7.9 Example diagrams
8 Comfort on Discrete Events
  8.1 General
  8.2 Base of the method
  8.3 Methodology
  8.4 Test conditions
      8.4.1 General
      8.4.2 Selection of test sections
      8.4.3 Test speed
      8.4.4 Wheel-rail contact geometry
      8.4.5 Vehicle condition
  8.5 Parameters to be measured
      8.5.1 General
      8.5.2 Location of measuring points
      8.5.3 Filtering
  8.6 Definition of intermediate quantities
      8.6.1 Symbols and indices
      8.6.2 Averaging procedure
      8.6.3 Intermediate quantities
  8.7 Definition of comfort index P[DE]
  8.8 Test report
  8.9 Example diagrams
9 Guide for the interpretation of the results (Informative)
  9.1 General
  9.2 Mean Comfort
  9.3 Continuous Comfort
  9.4 Comfort on Curve Transitions
  9.5 Comfort on Discrete Events
Annex A (normative) Reference system
Annex B (normative) Measurement techniques
      B.1 General
      B.2 Measuring equipment
          B.2.1 General
          B.2.2 Accelerometers and processing amplifiers
          B.2.3 Recording equipment
          B.2.4 Fixing transducers to the floor
      B.3 Seat measuring devices and their applications
Annex C (normative) Weighting curves
      C.1 General
      C.2 Filter functions
          C.2.1 General
          C.2.2 Band-limiting filter
          C.2.3 Acceleration to velocity transition
          C.2.4 Upward gradient
          C.2.5 Overall frequency weighting
          C.2.6 Reduction of the upper limit of the frequency
                range in vertical direction
      C.3 Tolerances
      C.4 Diagrams
Annex D (informative) Presentation of test report
      D.1 General
      D.2 Aim of test
      D.3 Test performer
      D.4 References
      D.5 Test conditions
          D.5.1 General information
          D.5.2 Vehicle
          D.5.3 Seat (for Mean Comfort Complete Method)
          D.5.4 Seat occupant (for Mean Comfort Complete Method)
          D.5.5 Track
          D.5.6 Speed profile
          D.5.7 Test configurations
      D.6 Measurements and processing
          D.6.1 Measurements
          D.6.2 Processing
      D.7 Report on Mean Comfort and Continuous Comfort
          D.7.1 General
          D.7.2 Time series
          D.7.3 Statistical results
          D.7.4 Comfort evaluation
          D.7.5 Spectral analyses
          D.7.6 Examples of diagrams
      D.8 Report on comfort in curve transitions
      D.9 Reporting on Comfort on Discrete Events
Annex E (normative) Vehicle assessment with respect to Mean
        Comfort Standard Method
      E.1 General
      E.2 Track geometric quality
      E.3 Test conditions
          E.3.1 Selection of test sections and test zones
          E.3.2 Test speed
          E.3.3 Wheel-rail contact geometry
          E.3.4 Vehicle condition
      E.4 Acceptable modifications of the methods for Mean
          Comfort evaluation
      E.5 Test report
Annex F (informative) Guideline for the application of direct
        tests
Annex G (informative) Workflow for numerical integration
Annex H (informative) Determining quantities
Bibliography

This standard specifies methods for quantifying the effects of vehicle body motions on ride comfort for passengers and vehicle assessment with respect to ride comfort. The effect considered is:discomfort, associated with relatively low levels of acceleration and roll velocity.Other effects, not included in the standard, are associated with higher acceleration levels:health risk effect: physical damage and psychological deterioration.The standard applies to passengers travelling in railway vehicles on railway lines, including main, secondary and suburban lines. This standard could be used as a guide for other railway vehicles, for example locomotives, metros, trams, etc.The standard applies to passengers in good health. This standard applies to measurements of motions. It also applies to simulated motions.