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BS EN 13848-6:2014+A1:2020

BS EN 13848-6:2014+A1:2020

$167.15

Railway applications. Track. Track geometry quality – Characterisation of track geometry quality

Published By Publication Date Number of Pages
BSI 2020 34
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This European Standard characterizes the quality of track geometry based on parameters defined in EN 13848‑1 and specifies the different track geometry classes which should be considered.

This European Standard covers the following topics:

  • description of track geometry quality;

  • classification of track quality according to track geometry parameters;

  • considerations on how this classification can be used;

  • this European Standard applies to high-speed and conventional lines of 1 435 mm and wider gauge;

  • this European Standard forms an integral part of EN 13848 series.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviations
3.1 Terms and definitions
8 3.2 Symbols and abbreviations
9 4 Basic principles
4.1 Introduction
4.2 Basic parameters for track geometry quality assessment”
4.3 Transparency
4.4 Complexity
4.5 Track-vehicle interaction
5 Assessment of track geometry quality: state-of-the-art
5.1 General
5.2 Standard deviation (SD)
10 5.3 Isolated defects
11 5.4 Combination of various parameters
5.4.1 Combined standard deviation (CoSD)
5.4.2 Standard deviation of the combinations of parameters
12 5.4.3 Point mass acceleration method (PMA)
13 5.5 Methods based on vehicle response
5.5.1 Use of theoretical model
5.5.2 Use of direct measurement
5.6 Power Spectral Density (PSD)
14 6 Levels of aggregation and calculation methods
15 7 Classes of track geometry quality
7.1 General
7.2 Description of track quality classes (TQC)
17 7.3 Values of track quality classes
18 7.4 Assignment of TQCs
7.5 Possible application of TQCs
20 Annex A (informative)Point mass acceleration method (PMA)
A.1 Introduction
A.2 Description of the PMA model
A.3 Calculation of the PMA-assessment figure
21 A.4 Features of the PMA method
23 Annex B (informative)Vehicle Response Analysis methods (VRA)
B.1 Introduction
B.2 Determination of the assessment functions
25 B.3 Application of the assessment functions
27 B.4 Features of VRA methods
28 Annex C (normative)Method for calculating reference TQIs (TQIref)
C.1 Introduction
C.2 Description of the reference method
30 Annex D (informative)Method of classification of alternative TQI using the TQCs
D.1 Introduction
D.2 Description of the conversion method

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BS EN 13848-6:2014+A1:2020
$167.15