Railway applications - Track - Track geometry quality - Part 1: Characterisation of track geometry

This European Standard gives definitions for the principal track geometry parameters and specifies minimum requirements for measurement, the analysis methods and the presentation of results. The aim is to allow the comparability of the output of different measuring systems.

Bahnanwendungen - Oberbau - Gleislagequalität - Teil 1: Beschreibung der Gleisgeometrie

Diese Europäische Norm gibt Definitionen für die maßgebenden Parameter der Gleisgeometrie an und legt Mindestanforderungen an die Messung, die Auswerteverfahren und die Präsentation der Ergebnisse fest. Ziel ist es, die Vergleichbarkeit von Ergebnissen verschiedener Messeinrichtungen zu ermöglichen.

Applications ferroviaires - Voie - Qualité géométrique de la voie - Partie 1: Caractérisation de la géométrie de voie

Le présent document donne des définitions pour les principaux paramètres géométriques de la voie et spécifie les exigences minimales pour le mesurage et les méthodes d'analyse. Le but est de permettre la comparabilité des résultats de différents systèmes de mesure.
Ce document ne s’applique pas aux systèmes de rail urbain.

Železniške naprave - Zgornji ustroj proge - Kakovost tirne geometrije - 1. del: Karakteristike tirne geometrije

Ta evropski standard podaja opredelitve za glavne parametre tirne geometrije in določa minimalne zahteve za meritve, metode analize in predstavitev rezultatov. Cilj je omogočiti primerljivost rezultatov različnih merilnih sistemov.

General Information

Status
Published
Public Enquiry End Date
26-Oct-2016
Publication Date
07-Apr-2019
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
05-Apr-2019
Due Date
10-Jun-2019
Completion Date
08-Apr-2019

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Železniške naprave - Zgornji ustroj proge - Kakovost tirne geometrije - 1. del: Karakteristike tirne geometrijeBahnanwendungen - Oberbau - Gleislagequalität - Teil 1: Beschreibung der GleisgeometrieApplications ferroviaires - Voie - Qualité géométrique de la voie - Partie 1: Caractérisation de la géométrie de voieRailway applications - Track - Track geometry quality - Part 1: Characterisation of track geometry93.100Gradnja železnicConstruction of railways45.080Rails and railway componentsICS:Ta slovenski standard je istoveten z:EN 13848-1:2019SIST EN 13848-1:2019en,fr,de01-junij-2019SIST EN 13848-1:2019SLOVENSKI

STANDARDSIST EN 13848-1:2004+A1:20081DGRPHãþD
SIST EN 13848-1:2019
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13848-1
March
t r s { ICS
{ uä s r r Supersedes EN
s u z v zæ sã t r r u ªA sã t r r zEnglish Version
Railway applications æ Track æ Track geometry quality æ Part

sã Characterization of track geometry Applications ferroviaires æ Voie æ Qualité géométrique de la voie æ Partie

sã Caractérisation de la géométrie de voie
Bahnanwendungen æ Oberbau æ Gleislagequalität æ Teil
sã Beschreibung der Gleisgeometrie This European Standard was approved by CEN on
t u December
t r s zä

egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä

translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä

CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä

EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels

t r s { CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN

s u z v zæ sã t r s { ESIST EN 13848-1:2019

EN 13848-1:2019 (E) 2 Contents Page European foreword ....................................................................................................................................................... 5 1 Scope .................................................................................................................................................................... 7 2 Normative references .................................................................................................................................... 7 3 Terms and definitions ................................................................................................................................... 7 4 Symbols and abbreviations ...................................................................................................................... 10 5 Description of the track coordinate system ....................................................................................... 10 6 Principal track geometric parameters ................................................................................................. 11 6.1 Track gauge .................................................................................................................................................... 11 6.1.1 General ............................................................................................................................................................. 11 6.1.2 Measurement method ................................................................................................................................ 12 6.1.3 Wavelength range ........................................................................................................................................ 12 6.1.4 Resolution ....................................................................................................................................................... 12 6.1.5 Measurement uncertainty ........................................................................................................................ 12 6.1.6 Range of measurement .............................................................................................................................. 12 6.1.7 Analysis method ........................................................................................................................................... 12 6.2 Longitudinal level ........................................................................................................................................ 12 6.2.1 General ............................................................................................................................................................. 12 6.2.2 Measurement method ................................................................................................................................ 13 6.2.3 Wavelength range ........................................................................................................................................ 13 6.2.4 Resolution ....................................................................................................................................................... 14 6.2.5 Measurement uncertainty ........................................................................................................................ 14 6.2.6 Range of measurement .............................................................................................................................. 14 6.2.7 Analysis method ........................................................................................................................................... 14 6.3 Cross level ....................................................................................................................................................... 14 6.3.1 General ............................................................................................................................................................. 14 6.3.2 Measurement method ................................................................................................................................ 15 6.3.3 Wavelength range ........................................................................................................................................ 15 6.3.4 Resolution ....................................................................................................................................................... 15 6.3.5 Measurement uncertainty ........................................................................................................................ 15 6.3.6 Range of measurement .............................................................................................................................. 15 6.3.7 Analysis method ........................................................................................................................................... 15 6.4 Alignment ........................................................................................................................................................ 16 6.4.1 General ............................................................................................................................................................. 16 6.4.2 Measurement method ................................................................................................................................ 16 6.4.3 Wavelength range ........................................................................................................................................ 16 6.4.4 Resolution ....................................................................................................................................................... 17 6.4.5 Measurement uncertainty ........................................................................................................................ 17 6.4.6 Range of measurement .............................................................................................................................. 17 6.4.7 Analysis method ........................................................................................................................................... 17 6.5 Twist ................................................................................................................................................................. 17 6.5.1 General ............................................................................................................................................................. 17 6.5.2 Measurement method ................................................................................................................................ 17 6.5.3 Wavelength range ........................................................................................................................................ 17 6.5.4 Resolution ....................................................................................................................................................... 17 6.5.5 Measurement uncertainty ........................................................................................................................ 17 SIST EN 13848-1:2019

EN 13848-1:2019 (E) 3 6.5.6 Range of measurement ............................................................................................................................... 18 6.5.7 Analysis methods .......................................................................................................................................... 18 7 Measurement conditions ........................................................................................................................... 18 Annex A (informative)

Decolouring process .................................................................................................... 19 A.1 Definition of decolouring ........................................................................................................................... 19 A.2 Decolouring method .................................................................................................................................... 20 A.3 Verification of a decolouring process .................................................................................................... 21 A.3.1 Introduction.................................................................................................................................................... 21 A.3.2 Verification with test signals .................................................................................................................... 21 A.3.3 Verification with recorded track geometry data .............................................................................. 22 Annex B (informative)

Other parameters ......................................................................................................... 24 B.1 Introduction.................................................................................................................................................... 24 B.2 Parameters obtained by direct measurement ................................................................................... 24 B.3 Parameters obtained by derived measurement to establish in-service values ..................... 24 B.3.1 Cyclic irregularities ...................................................................................................................................... 24 B.3.2 Dip angle .......................................................................................................................................................... 25 B.3.3 Other parameters ......................................................................................................................................... 25 B.3.4 Rail measurements ...................................................................................................................................... 26 B.3.5 Supporting data ............................................................................................................................................. 26 Annex C (normative)

Filter requirements ........................................................................................................ 27 C.1 General requirements ................................................................................................................................. 27 C.2 Tolerance bands for filter transfer functions ..................................................................................... 27 C.2.1 Introduction.................................................................................................................................................... 27 C.2.2 Filter for D1 ..................................................................................................................................................... 27 C.2.3 Filter for D2 ..................................................................................................................................................... 30 Annex D (informative)

Background to filtering .............................................................................................. 33 D.1 Selection of tolerance bands ..................................................................................................................... 33 D.2 Guideline for custom filters ...................................................................................................................... 33 D.3 Implementation of filters ........................................................................................................................... 36 D.3.1 Off-line implementation ............................................................................................................................. 36 D.3.2 Online implementation .............................................................................................................................. 36 D.4 Reference filter .............................................................................................................................................. 37 D.5 Conversion of results of deviating filters ............................................................................................. 37 D.6 Comparison of different measurement systems ............................................................................... 42 Annex E (informative)

Measurement of acceleration ................................................................................... 43 E.1 Introduction.................................................................................................................................................... 43 E.2 Measurement method ................................................................................................................................. 43 E.3 Frequency range ........................................................................................................................................... 43 E.4 Range of measurement ............................................................................................................................... 43 E.5 Sampling frequency ..................................................................................................................................... 43 E.6 Measurement conditions ........................................................................................................................... 44 E.7 Analysis method ............................................................................................................................................ 44 E.8 Output requirements .................................................................................................................................. 44 E.9 Output presentation .................................................................................................................................... 44 Annex F (informative)

Track geometry data for simulation purposes .................................................. 45 F.1 Introduction.................................................................................................................................................... 45 F.2 Contents of track geometry data for simulation purposes ............................................................ 45 F.3 Extended wavelength range...................................................................................................................... 46 F.4 Numerical resolution .................................................................................................................................. 46 F.5 Pre-processing for simulation ................................................................................................................. 47 SIST EN 13848-1:2019

EN 13848-1:2019 (E) 4 Annex ZA (informative)

Relationship between this European Standard and the Essential Requirements of EU Directive 2008/57/EC aimed to be covered .............................................. 48 Bibliography ................................................................................................................................................................. 50

SIST EN 13848-1:2019

EN 13848-1:2019 (E) 5 European foreword This document (EN 13848-1:2019) has been prepared by Technical Committee CEN/TC 256 “Railway applications”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2019, and conflicting national standards shall be withdrawn at the latest by September 2019. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 13848-1:2003+A1:2008. The main changes with respect to the previous edition are listed below: — Uncertainty and resolution values are exported to the relevant other parts (EN 13848-2, -3 and -4); — Addition of D0 domain; — New Annex A on decolouring; — Improvement of Annex B on mainly cyclic top and dip angle; — New Annex C and D on filtering; — New Annex F on simulation. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 2008/57/EC. For relationship with EU Directive 2008/57/EC, see informative Annex ZA, which is an integral part of this document. This European Standard is one of the EN 13848 series, Railway applications — Track — Track geometry quality, as listed below: — Part 1: Characterization of track geometry; — Part 2: Measuring systems — Track recording vehicles; — Part 3: Measuring systems — Track construction and maintenance machines; — Part 4: Measuring systems — Manual and lightweight devices; — Part 5: Geometric quality levels — Plain line, switches and crossings; — Part 6: Characterisation of track geometry quality. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, SIST EN 13848-1:2019

EN 13848-1:2019 (E) 6 Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 13848-1:2019

EN 13848-1:2019 (E) 7 1 Scope This document gives definitions for the principal track geometry parameters and specifies minimum requirements for measurement and the analysis methods. The aim is to allow the comparability of the output of different measuring systems. This document does not apply to Urban Rail Systems. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 13848-2, Railway applications — Track — Track geometry quality — Part 2: Measuring systems — Track recording vehicles EN 13848-3, Railway applications — Track — Track geometry quality — Part 3: Measuring systems — Track construction and maintenance machines EN 13848-4, Railway applications — Track — Track geometry quality — Part 4: Measuring systems — Manual and lightweight devices EN 13848-5:2017, Railway applications — Track — Track geometry quality — Part 5: Geometric quality levels — Plain line, switches and crossings 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses:

IEC Electropedia: available at http://www.electropedia.org/
ISO Online browsing platform: available at http://www.iso.org/obp

NOTE Refer also to the symbols and definitions described in Clause 4. 3.1 track geometry quality assessment of excursions in the vertical and lateral planes from the mean or designed geometrical characteristics of specified parameters which give rise to safety concerns or have a correlation with ride quality 3.2 gauge face inside face of the running rail head 3.3 running table upper surface of the head of the rail Note 1 to entry: See Figure 1. SIST EN 13848-1:2019

EN 13848-1:2019 (E) 8

Key 1 running table Figure 1 — Running table 3.4 running surface curved surface defined by the longitudinal displacement of a straight line perpendicular to the centre-line of the track and tangential to both running tables Note 1 to entry: See Figure 2.

Figure 2 — Running surface 3.5 uncertainty quantity defining an interval about a result of a measurement expected to encompass a large fraction of the distribution of values that could reasonably be attributed to the measurand [refer to ISO 21748] Note 1 to entry: The coverage factor is equal to 2. The uncertainty as defined corresponds to a confidence interval of about 95 % of a normal distribution. Note 2 to entry: The value applicable for track recording vehicles is described in EN 13848-2. For other measurement devices specific values may apply according to EN 13848-3 and EN 13848-4. SIST EN 13848-1:2019

EN 13848-1:2019 (E) 9 3.6 resolution smallest change in the value of a quantity to be measured which produces a detectable change in the indication of the measuring instrument Note 1 to entry: The value applicable for track recording vehicles is described in EN 13848-2. For other measurement devices specific values may apply according to EN 13848-3 and EN 13848-4. 3.7 wavelength range space domain taken by the parameters' components 3.8 sampling distance travelled distance between any two consecutive measurement points 3.9 range of measurement specific domain described by its limits 3.10 isolated defect part of the signal exceeding a given limit such as IAL, IL or AL with at least one sample for a sampling distance of 0,25 m Note 1 to entry: The length of the exceedance is given by the number of samples exceeding the limit [refer to EN 13848-5:2017]. SIST EN 13848-1:2019

EN 13848-1:2019 (E) 10 4 Symbols and abbreviations For the purposes of this document, symbols and abbreviated terms applied are specified in Table 1. Table 1 — Symbols No. Symbol Designation Unit 1 G Track gauge mm 2 Zp Limit of the range below the running surface within which the gauge is measured. Zp is always 14 mm for a Vignole rail mm 3 Zll1 Deviation in the direction of consecutive running table levels on right hand rail. Used in the measurement of Longitudinal Level mm 4 Zll2 Deviation in the direction of consecutive running table levels on left hand rail. Used in the measurement of Longitudinal Level mm 5 Yp1 Distance between point P and a reference line on right hand rail. Used in the measurement of Alignment mm 6 Yp2 Distance between point P and a reference line on left hand rail. Used in the measurement of Alignment mm 7 P Gauge face contact point

8 D0, D1, D2, D3 Wavelength ranges m 9

Wavelength m 10 V1 Amplitude from the zero line. Used in the measurement of Twist mm/m 11 V2 Amplitude from the mean value. Used in the measurement of Twist mm/m 12

º Twist base-length m 13 X, Y, Z Axes of a track coordinate system

5 Description of the track coordinate system The track geometry quality is described by means of a moving right-hand Cartesian coordinate system centred to the track with clockwise rotation (refer to Figure 3): — X-axis: axis represented as an extension of the track towards the direction of running; — Y-axis: axis parallel to the running surface; — Z-axis: axis perpendicular to the running surface and pointing downwards. NOTE This description is for the coordinate system of the measurement vehicle. It is up to the infrastructure manager to define a reference direction of the track. SIST EN 13848-1:2019

EN 13848-1:2019 (E) 11

Key 1 running direction 2 intersection between considered cross section and running surface 3 track coordinate system Figure 3 — Relationship between the axes of the track coordinate system Rail identification (left or right rail) is not in the scope of the document, but is to be defined for the purpose of exchanging data. 6 Principal track geometric parameters 6.1 Track gauge 6.1.1 General Track gauge, G, is the smallest distance between lines perpendicular to the running surface intersecting each rail head profile at point P in a range from 0 to Zp below the running surface. In this standard Zp is always 14 mm. In the situation of new unworn rail head the point P will be at the limit Zp below the railhead, see Figure 4.

Key 1 running surface Figure 4 — Track gauge for new rail In the situation of worn rail head the height of point P for the left rail can be different from the right rail, see Figure 5. SIST EN 13848-1:2019

EN 13848-1:2019 (E) 12

Key 1 running surface Figure 5 — Track gauge for worn rail 6.1.2 Measurement method Track gauge can be measured using a contact system or a non-contact system. 6.1.3 Wavelength range Not applicable. 6.1.4 Resolution The values of resolution depend on the type of measuring system and are given in the corresponding parts of the standard EN 13848-2, EN 13848-3 and EN 13848-4. 6.1.5 Measurement uncertainty The values of uncertainty depend on the type of measuring system and are given in the corresponding parts of the standard EN 13848-2, EN 13848-3 and EN 13848-4. 6.1.6 Range of measurement The range shall be the nominal gauge

« s w mm/+50 mm. 6.1.7 Analysis method Individual defects are represented by the amplitude from the nominal value to the peak value (minimum and maximum peak value). 6.2 Longitudinal level 6.2.1 General Longitudinal level is the deviation zll in z-direction of running table levels on any rail from the smoothed vertical position (reference line) expressed in defined wavelength ranges. The smoothing is applied over a length that covers the wavelength range of interest (minimum two times the upper limit of the wavelength range of interest). The reference line and the longitudinal level are calculated from successive measurements (refer to Figure 6). SIST EN 13848-1:2019

EN 13848-1:2019 (E) 13

Key 1 running table 2 reference line Figure 6 — Longitudinal level 6.2.2 Measurement method Longitudinal level measurements shall be made with either an inertial system or a versine system (that should preferably be asymmetric) or by a combination of both methods. If the versine method of measurement is used, a decolouring of the measured signals is necessary in order to eliminate the influence of the transfer function of the versine system (see Annex A). NOTE In the case of limited analysis length, the longitudinal level can be evaluated also from geodetic measurements. 6.2.3 Wavelength range Three ranges expressed in wavelengths () shall be considered: — D1: 3 m <

¶ 25 m; — D2: 25 m <
¶ 70 m; — D3: 70 m <

¶ 150 m, used for measuring long wavelength defects. Generally this range should only be considered for line speeds greater than 230 km/h. NOTE Other wavelengths longer than 70 m can also be taken into consideration by the vertical curvature parameter (refer to Annex B); however, this does not give an equivalent assessment of D3 domain. In order to detect short wavelength defects, which can generate high dynamic forces, an optional wavelength range can be considered: D0: 1 m <

w m (1) SIST EN 13848-1:2019

EN 13848-1:2019 (E) 14 When measuring in the D0 domain, the sampling distance should be reduced to 0,1 m. Due to the lack of experience in this domain no additional requirements are given presently. The filters used for calculating D0, D1, D2 and D3 shall comply with the requirements of Annex C. 6.2.4 Resolution The values of resolution depend on the type of measurin

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