This European Standard characterizes the quality of track geometry based on parameters defined in EN 13848\u20111 and specifies the different track geometry classes which should be considered.<\/p>\n
This European Standard covers the following topics:<\/p>\n
description of track geometry quality;<\/p>\n<\/li>\n
classification of track quality according to track geometry parameters;<\/p>\n<\/li>\n
considerations on how this classification can be used;<\/p>\n<\/li>\n
this European Standard applies to high-speed and conventional lines of 1 435 mm and wider gauge;<\/p>\n<\/li>\n
this European Standard forms an integral part of EN 13848 series.<\/p>\n<\/li>\n<\/ul>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | 1 Scope 2 Normative references 3 Terms, definitions, symbols and abbreviations 3.1 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 3.2 Symbols and abbreviations <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 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) <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 5.3 Isolated defects <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 5.4 Combination of various parameters 5.4.1 Combined standard deviation (CoSD) 5.4.2 Standard deviation of the combinations of parameters <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 5.4.3 Point mass acceleration method (PMA) <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 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) <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 6 Levels of aggregation and calculation methods <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 7 Classes of track geometry quality 7.1 General 7.2 Description of track quality classes (TQC) <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 7.3 Values of track quality classes <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 7.4 Assignment of TQCs 7.5 Possible application of TQCs <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | A.4 Features of the PMA method <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | Annex B (informative)Vehicle Response Analysis methods (VRA) B.1 Introduction B.2 Determination of the assessment functions <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | B.3 Application of the assessment functions <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | B.4 Features of VRA methods <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | Annex C (normative)Method for calculating reference TQIs (TQIref) C.1 Introduction C.2 Description of the reference method <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | Annex D (informative)Method of classification of alternative TQI using the TQCs D.1 Introduction D.2 Description of the conversion method <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Railway applications. Track. Track geometry quality – Characterisation of track geometry quality<\/b><\/p>\n |