1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 13848-4:2011Railway applications Track Track geometry qualityPart 4: Measuring systems Manual andlightweight devicesCopyright European Committee for Standardization Provide
2、d by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13848-4:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 13848-4:2011.The UK participation in its preparation was entrusted to TechnicalCo
3、mmittee RAE/2, Railway Applications - Track.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards
4、 Institution 2012ISBN 978 0 580 69073 0ICS 93.100Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 January 2012.Amendments issued since publicationDate Text affec
5、tedCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13848-4:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13848-4 December 2011 ICS 93.100 English Version Railway
6、 applications - Track - Track geometry quality - Part 4: Measuring systems - Manual and lightweight devices Applications ferroviaires - Voie - Qualit gomtrique de la voie - Partie 4: Systmes de mesure - Dispositifs manuels et de faible poids Bahnanwendungen - Oberbau - Qualitt der Gleisgeometrie - T
7、eil 4: Messsysteme - Handgefhrte und leichte Vorrichtungen This European Standard was approved by CEN on 5 November 2011. 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 witho
8、ut 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 l
9、anguage 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, Den
10、mark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALIS
11、ATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13848-4:2011: ECopyright European Committee for Standardization Provided by IHS under li
12、cense with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13848-4:2011EN 13848-4:2011 (E) 2 Contents Page Foreword 41 Scope 52 Normative references 53 Terms and definitions .54 Symbols and abbreviations 75 Track geometry measuring system fitted on trolley
13、s or on manually operated devices .85.1 Introduction 85.2 General description .85.2.1 General description: TGMT .85.2.2 General description: MOD 95.3 Environmental conditions 105.3.1 Introduction . 105.3.2 Climatic conditions . 105.3.3 Operating conditions 105.4 Track features input . 105.4.1 Genera
14、l . 105.4.2 Track features input: TGMT . 115.4.3 Track features input: MOD . 115.5 Data localisation . 115.5.1 Data localisation: TGMT . 115.5.2 Data localisation: MOD . 115.6 Measuring system/device 125.6.1 Measuring system/device: TGMT 125.6.2 Measuring system/device: MOD 125.7 Data processing 135
15、.7.1 Data processing: TGMT . 135.7.2 Data processing: MOD . 135.8 Data output 135.8.1 Data output: TGMT 135.8.2 Data output: MOD . 145.9 Data storage 145.9.1 Data storage: TGMT 145.9.2 Data storage: MOD 146 Testing of track geometry measuring system . 146.1 Testing: TGMT . 146.1.1 General . 146.1.2
16、Calibration . 156.1.3 Validation tests . 156.1.4 Routine validation . 176.2 Testing: MOD . 176.2.1 Introduction . 176.2.2 Calibration . 186.2.3 Validation tests . 186.2.4 Routine validation . 18Annex A (normative) Parameters measured by track geometry measuring trolleys (TGMTs) and manually operated
17、 devices (MODs) 19A.1 Introduction . 19A.2 Track gauge . 20Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13848-4:2011EN 13848-4:2011 (E) 3 A.3 Longitudinal level 21A.4 Cr
18、oss level . 22A.5 Alignment . 23A.6 Twist 24Annex B (informative) Principles of measurement 25B.1 General description . 25B.2 Longitudinal level and alignment (TGMT only) 25B.2.1 Chord measuring system . 25B.2.2 Inertial measuring system 25B.3 Track gauge . 26B.4 Cross level . 26B.5 Twist 26Annex C
19、(normative) TGMT / Description of field tests: values to be respected . 27C.1 Repeatability Statistical analysis of parameter data 27C.2 Reproducibility Statistical analysis of parameter data . 27Bibliography 29Copyright European Committee for Standardization Provided by IHS under license with CENNo
20、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13848-4:2011EN 13848-4:2011 (E) 4 Foreword This document (EN 13848-4:2011) has been prepared by Technical Committee CEN/TC 256 “Railway applications”, the secretariat of which is held by DIN. This European Standar
21、d shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2012, and conflicting national standards shall be withdrawn at the latest by June 2012. Attention is drawn to the possibility that some of the elements of this docu
22、ment may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This European Standard is one of the series EN 13848 “Railway applications Track Track geometry quality” as listed below: Part 1: Characterisation of track geomet
23、ry; 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; Part 6: Characterisation of geometric quality. According to the CEN/CE
24、NELEC Internal Regulations, the national standards organizations 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, Lithua
25、nia, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license
26、from IHS-,-,-BS EN 13848-4:2011EN 13848-4:2011 (E) 5 1 Scope This part of this European Standard specifies the minimum requirements that shall be met by measuring systems fitted on track geometry measuring trolleys and manually operated devices to give an evaluation of track geometry quality when me
27、asuring one or more of the parameters described in EN 13848-1:2003+A1:2008. It sets out the acceptable differences from EN 13848-1:2003+A1:2008 when using track geometry measuring trolleys and manually operated devices to measure track geometry. It applies to all track geometry measuring systems fit
28、ted to track geometry measuring trolleys and manually operated devices after the date of implementation of this standard. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undate
29、d references, the latest edition of the referenced document (including any amendments) applies. EN 13848-1:2003+A1:2008, Railway applications Track Track geometry quality Part 1: Characterisation of track geometry EN 13848-2:2006, Railway applications Track Track geometry quality Part 2: Measuring s
30、ystems Track recording vehicles EN 13848-5:2008+A1:2010, Railway applications Track Track geometry quality Part 5: Geometric quality levels Plain line 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 track geometry measuring trolley (TGMT) tro
31、lley designed for measuring one or more track geometry parameters, having the following characteristics: self-propelled, hauled or moved by human force; portability (capability to be placed readily on or off the track manually or by other means); capability of measuring from standstill to the maximu
32、m permissible speed of the trolley; having wheels which do not load the track as defined in Clause 5 of EN 13848-1:2003+A1:2008. 3.2 manually operated device (MOD) hand tool designed for measuring track gauge and/or cross level at standstill 3.3 sensor device which detects, measures and translates c
33、haracteristics of track geometry into quantities that can be used for further data processing Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13848-4:2011EN 13848-4:2011 (E
34、) 6 3.4 measuring direction course between two points on a track, independent of orientation of the TGMT. Between two given points A and B, there are two opposite directions: A to B and B to A 3.5 orientation physical positioning of a TGMT, with regards to which end of the TGMT is leading or trailin
35、g 3.6 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 self-same measurement device and interpr
36、etation methods, subject to the following: similar speed; same measuring direction; same TGMT orientation; similar environmental conditions. 3.7 reproducibility degree of agreement between the values of successive measurements of the same parameter made under varying conditions, within a short perio
37、d of time, where the individual measurements are carried out on the same section of track using the self-same measurement device and interpretation methods, subject to one or more of the following: variation of speed; different measuring directions; different TGMT orientations, if TGMT is designed t
38、o measure in both orientations; different environmental conditions. 3.8 validation set of tests for determining whether the TGMT or MOD complies with the requirements of this standard 3.9 calibration set of procedures for adjusting the TGMT or MOD in order to meet the requirements of this standard 3
39、.10 event record of a track or line-side feature that can be either technical, physical or natural 3.11 localisation information required to locate events and the measured track geometry Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduct
40、ion or networking permitted without license from IHS-,-,-BS EN 13848-4:2011EN 13848-4:2011 (E) 7 3.12 reference track track with known characteristics, to allow adequate testing of the track geometry measuring and recording system 3.13 transfer function refer to Annex A of EN 13848-2:2006 3.14 resol
41、ution smallest change in the value of a quantity to be measured which produces a detectable change in the indication of the measuring instrument 3.15 uncertainty refer to ENV 13005:1999, 2.3.5 3.16 re-colouring algorithm which converts one signal into a different signal. It is used in EN 13848 serie
42、s to convert a chord measurement signal into a D1, D2 or D3 measurement signal 4 Symbols and abbreviations For the purposes of this document, the following symbols and abbreviations apply. Table 1 Symbols and abbreviations No. Symbol Designation Unit1 D1 Wavelength range 3 m B Forward1b A-B Forward
43、2 B-A Forward3a A-B Reverse 3b A-B Reverse Table 3 Required comparisons Type of analysis TGMT with 1 measuring orientation TGMT with 2 measuring orientations Repeatability 1a sections with significant cross level (at least 70 mm for a nominal track gauge of 1435 mm); sections with a quality level cl
44、ose to the alert limit level of the standard deviation, as defined in EN 13848-5:2008+A1:2010, Annex B. The test section shall be long enough to ensure that usable data is obtained over 500 continuous metres of track for each run. Ideally, a reference track should be used or a comparison made with a
45、 track-recording vehicle. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13848-4:2011EN 13848-4:2011 (E) 17 Design track data such as curve radii, and cross level, as well
46、 as measured values, shall be provided with the test report. 6.1.3.4 Simplified tests A simplified repeatability or reproducibility test shall be carried out in accordance with the manufacturers maintenance manual in the following circumstances: after a maintenance or repair operation on the track g
47、eometry measuring and recording system; once a year. A simplified test shall consist of at least two runs in one direction over the same test section. The test section shall be long enough to ensure that usable data is obtained over 200 continuous metres of track for each run. The manufacturer shall
48、 specify the content of the simplified test to be undertaken for any relevant operation of maintenance or repair, in his maintenance manual. Static tests shall be carried out for example to ensure that there are no offsets in the measurement of cross level and track gauge. The results of the tests shall comply with the requirements of Annex C. 6.1.4 Routine validation During measuring operations, sui
