EN 13848-2:2020

SLOVENSKI STANDARD
01-januar-2021
Nadomešča:
SIST EN 13848-2:2006
Železniške naprave - Zgornji ustroj proge - Kakovost tirne geometrije - 2. del:
Merilni sistemi - Merilna vozila
Railway applications - Track - Track geometry quality - Part 2: Measuring systems -
Track recording vehicles
Bahnanwendungen - Oberbau - Geometrische Gleislagegüte - Teil 2: Messsysteme -
Gleismessfahrzeuge
Applications ferroviaires - Voie - Qualité géométrique de la voie - Partie 2 : Systèmes de
mesure - Véhicules d'enregistrement de la voie
Ta slovenski standard je istoveten z: EN 13848-2:2020
ICS:
45.080 Tračnice in železniški deli Rails and railway
components
93.100 Gradnja železnic Construction of railways
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 13848-2
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2020
EUROPÄISCHE NORM
ICS 93.100 Supersedes EN 13848-2:2006
English Version
Railway applications - Track - Track geometry quality -
Part 2: Measuring systems - Track recording vehicles
Applications ferroviaires - Voie - Qualité géométrique Bahnanwendungen - Oberbau - Geometrische
de la voie - Partie 2 : Systèmes de mesure - Véhicules Gleislagegüte - Teil 2: Messsysteme -
d'enregistrement de la voie Gleismessfahrzeuge
This European Standard was approved by CEN on 5 July 2020.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13848-2:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Symbols and abbreviations . 8
5 Track geometry recording system . 8
5.1 General description . 8
5.2 Environmental conditions . 9
5.3 Track features input . 10
5.4 Localization device . 11
5.5 Measuring devices . 11
5.6 Resolution . 12
5.7 Signal processing . 12
5.8 Data processing and analysis . 12
5.9 Data presentation and storage . 13
6 Testing of track geometry recording system . 14
6.1 Introduction . 14
6.2 Calibration . 14
6.3 Validation . 14
Annex A (informative) Frequency analysis . 26
A.1 General description . 26
A.2 Practical calculation . 27
A.3 Applications within this standard . 28
Annex B (informative) Principles of measurement . 31
B.1 General description . 31
B.2 Longitudinal level and alignment . 31
B.3 Track gauge . 31
B.4 Cant . 32
B.5 Twist . 32
Annex C (normative) Description of field tests: values to be respected . 33
C.1 General . 33
C.2 Repeatability . 33
C.3 Reproducibility . 35
C.4 Cross check . 36
Annex D (informative) Track geometry measurement uncertainty . 38
D.1 General . 38
D.2 Evaluating uncertainty for track geometry measurement systems . 39
D.3 Measurement uncertainty: limit values . 41
Annex E (informative) Cross checks in the space domain . 43
Bibliography . 44

European foreword
This document (EN 13848-2:2020) 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 May 2021, and conflicting national standards shall be
withdrawn at the latest by May 2021.
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 13848-2:2006.
This European Standard is one of the series EN 13848 “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: Characterization 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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
1 Scope
This document specifies the minimum requirements for track geometry measuring principles and track
geometry measuring systems in order to produce comparable results when measuring the same track.
It applies to all measuring systems, attended or unattended, fitted on any vehicle, except those systems
defined in EN 13848-3 and EN 13848-4. Only systems put into service after the standard comes into
force are concerned.
This document does not define the requirements for vehicle acceptance.
This document does not apply to measuring systems dedicated 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 13848-1, Railway applications - Track - Track geometry quality - Part 1: Characterization of track
geometry
EN 13848-6, Railway applications - Track - Track geometry quality - Part 6: Characterisation of track
geometry quality
JCGM 200:2012, International vocabulary of metrology – Basic and general concepts and associated terms
(VIM)
3 Terms and definitions
For the purpose 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 https://www.iso.org/obp
3.1
track geometry recording vehicle
self-propelled or hauled vehicle with fixed, dedicated, measuring equipment and systems, used for the
measurement, assessment and recording of track geometry parameters under loaded conditions, which
measures and produces consistent results to the requirements of EN 13848-1
Note 1 to entry: The measuring system can be attended or not. The track geometry recording vehicle belongs to
the infrastructure inspection vehicles as defined in TSI Loc&Pas 1302/2014/EU.
3.2
sensor
device which detects, measures and translates characteristics of track geometry into quantities that can
be used for further data processing
3.3
repeatability
degree of agreement between the values of successive measurements of the same parameter made
under the same conditions, within a short period of time, where the individual measurements are
carried out on the same section of track using the same measurement and interpretation methods,
subject to the following controls:
— similar speed;
— same measuring direction;
— same vehicle orientation;
— similar environmental conditions
3.4
reproducibility
degree of agreement between the values of successive measurements of the same parameter made
under varying conditions, within a short period of time, where the individual measurements are carried
out on the same section of track using the same measurement and interpretation methods, subject to
one or more of the following:
— variation of speed;
— different measuring directions;
— different vehicle orientations;
— different environmental conditions
3.5
comparability
degree of agreement of different track recording vehicles achieved under the same conditions
3.6
validation
set of tests for determining if a track recording vehicle complies with the requirements of this standard
3.7
calibration
set of procedures f
...