SIST EN 16704-2-1:2017
(Main)Railway applications - Track - Safety protection on the track during work - Part 2-1: Common solutions and technology - Technical requirements for Track Warning Systems (TWS)
Railway applications - Track - Safety protection on the track during work - Part 2-1: Common solutions and technology - Technical requirements for Track Warning Systems (TWS)
This document defines minimum functional and non-functional requirements for developing a Track Warning Systems (TWS) to warn persons during their work on or nearby the track about the approaching of trains or rail vehicles using acoustical and visual TWS-Signals. These systems may also be able to influence the approaching of trains and rail vehicles by stoppage function.
This European Standard is applicable:
- to systems, sub-systems and components within TWS, including those containing software; in particular;
- to new TWS;
- to new integrations of systems, sub-systems and components into existing TWS;
- to modifications of TWS developed according to this standard.
For single warning units (e.g. simple electrical horns) it is recommended to use this standard, too.
This document does not deal with:
- hazards during the installation of the TWS caused by trains or rail vehicles on the lines;
- hazards caused by the improper use of TWS;
- hazards caused by the improper behaviour of persons working on or nearby the track;
- CO2-tyfone, human operated pressure signal horns, flags, detonators or machine warning systems according to UIC 644;
- national safety regulations to plan and operate TWS in track.
Bahnanwendungen - Oberbau - Sicherungsmaßnahmen während Gleisbauarbeiten - Teil 2-1: Allgemeine Lösungen und Technologie - Technische Anforderungen an Warmsysteme an Gleisen
Dieses Dokument legt funktionale sowie nichtfunktionale Mindestanforderungen an die Entwicklung von Warnsystemen (TWS) fest, die Personen während ihres Arbeitseinsatzes auf oder in der Nähe von Gleisen unter Verwendung akustischer und optischer TWS-Signale vor herannahenden Zügen oder Schienenfahrzeu-gen warnen. Diese Systeme dürfen zugleich in der Lage sein, das Herannahen von Zügen und Schienenfahr-zeugen durch eine Haltefunktion zu beeinflussen.
Diese Europäische Norm gilt:
- insbesondere für Systeme, Teilsysteme und Bestandteile von TWS, einschließlich solcher, die Software enthalten;
- für neue TWS;
- für die Neueinbindung von Systemen, Teilsystemen und Bestandteilen in vorhandene TWS;
- für Änderungen von TWS, die nach dieser Norm entwickelt wurden.
Es wird empfohlen, diese Norm auch für Einzelwarngeräte (z. B. einfache elektrische Signalhörner) zu verwenden.
Dieses Dokument behandelt Folgendes nicht:
- Gefährdungen durch Züge oder Schienenfahrzeuge auf den Bahnstrecken während der Montage von TWS;
- Gefährdungen, die sich aus der unsachgemäßen Verwendung von TWS ergeben;
- Gefährdungen, die sich aus dem unangemessenen Verhalten von Personen ergeben, die auf dem Gleis oder in Gleisnähe arbeiten;
- CO2-Typhone, von Menschen bediente, druckbetriebene Signalhörner, Flaggen, Sprengkörper oder Maschinenwarnsysteme nach UIC 644;
- nationale Sicherheitsbestimmungen zur Planung und zum Betrieb von TWS am Gleis.
Applications ferroviaires - Voie - Protection et sécurité durant des travaux sur la voie - Partie 2-1: Solutions communes et technologie - Exigences relatives aux dispositifs d'annonce des circulations (TWS)
Le présent document définit les exigences minimales fonctionnelles et non fonctionnelles pour le développement des dispositifs d’annonce des circulations (TWS) destinés à annoncer aux personnes travaillant sur ou à proximité de la voie de l’approche de trains ou de circulations ferroviaires, au moyen de signaux sonores et lumineux. Ces dispositifs peuvent également avoir une influence sur l’approche des trains et des circulations ferroviaires, au moyen d'une fonction d'arrêt.
La présente Norme européenne est applicable :
- aux systèmes, sous-systèmes et composants des TWS, y compris ceux comportant des logiciels ; en particulier :
- aux nouveaux TWS ;
- à l'intégration de nouveaux systèmes, sous-systèmes et composants dans les TWS existants ;
- aux modifications de TWS développés conformément à cette norme.
Concernant les dispositifs d'annonce simple (par exemple, simples avertisseurs sonores électriques), il est recommandé d'avoir recours à la présente norme également.
Le présent document ne s’applique pas aux :
- risques engendrés, par les trains ou les circulations ferroviaires sur les lignes durant l'installation des TWS
- risques engendrés par l'utilisation incorrecte des TWS ;
- risques engendrés par le comportement inadapté d'opérateurs travaillant sur les voies ou à proximité des voies ;
- cornes à air ou à gaz, avertisseurs sonores à pression à commande manuelle, drapeaux, détonateurs ou avertisseurs sonores des machines conformément à l'UIC 644 ;
- règles nationales de sécurité pour la mise en œuvre et l'utilisation des TWS sur les voies.
Železniške naprave - Zgornji ustroj proge - Zagotavljanje varnosti med delom na progi - 2-1. del: Skupne rešitve in tehnologija - Tehnične zahteve za opozorilne sisteme TWS
Ta dokument opredeljuje minimalne funkcionalne in nefunkcionalne zahteve za razvijanje opozorilnih sistemov (TWS), ki opozarjajo osebe med njihovim delom na progi ali ob njej na bližajoče se vlake ali železniška vozila z uporabo zvočnih in vidnih opozorilnih signalov. Ti sistemi lahko vplivajo tudi na približevanje vlakov in železniških vozil, in sicer tako, da jih zaustavijo. Ta evropski standard se uporablja: – za sisteme, podsisteme in komponente opozorilnega sistema, vključno s tistimi z vgrajeno programsko opremo; zlasti; – za nove opozorilne sisteme; – za nove vgradnje sistemov, podsistemov in komponent v obstoječe opozorilne sisteme; – za spremembe opozorilnega sistema, ki so izvedene v skladu s tem standardom. Za posamezne opozorilne enote (npr. preproste električne hupe) se prav tako priporoča uporaba tega standarda. Ta dokument ne obravnava: – nevarnosti, ki jih povzročijo vlaki ali železniška vozila na progi med namestitvijo opozorilnega sistema; -– nevarnosti, do katerih pride zaradi nepravilnega ravnanja oseb, ki delajo na progi ali ob njej; – alarmnih naprav Tyfon CO2, signalnih hup pod tlakom, ki jih upravlja človek, zastav, detonatorjev ali strojnih opozorilnih sistemov v skladu z objavo UIC 644; – nacionalnih varnostnih predpisov v zvezi z načrtovanjem in delovanjem opozorilnega sistema na progi.
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Bahnanwendungen - Oberbau - Sicherungsmaßnahmen während Gleisbauarbeiten - Teil 2-1: Allgemeine Lösungen und Technologie - Technische Anforderungen an Warmsysteme an GleisenApplications ferroviaires - Voie - Protection et sécurité durant des travaux sur la voie - Partie 2-1: Solutions communes et technologie - Exigences relatives aux dispositifs d'annonce des circulations (TWS)Railway applications - Track - Safety protection on the track during work - Part 2-1: Common solutions and technology - Technical requirements for Track Warning Systems (TWS)93.100Gradnja železnicConstruction of railways13.100Varnost pri delu. Industrijska higienaOccupational safety. Industrial hygieneICS:Ta slovenski standard je istoveten z:EN 16704-2-1:2016SIST EN 16704-2-1:2017en,fr,de01-januar-2017SIST EN 16704-2-1:2017SLOVENSKI
STANDARD
SIST EN 16704-2-1:2017
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16704-2-1
November
t r s x ICS
{ uä s r r English Version
Railway applications æ Track æ Safety protection on the track during work æ Part
tæ sã Common solutions and technologies æ Technical requirements for Track Warning Applications ferroviaires æ Voie æ Protection et sßcuritß durant des travaux sur la voie æ Partie
tæ sã Solutions communes et technologie æ Exigences relatives aux
Bahnanwendungen æ Oberbau æ Sicherungsmaßnahmen während Gleisbauarbeiten æ Teil
tæ sã Allgemeine Lösungen und Technologien æ Technische Anforderungen an WarnsysThis European Standard was approved by CEN on
x August
t r s xä
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 Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey andUnited Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x y r væ tæ sã t r s x ESIST EN 16704-2-1:2017
EN 16704-2-1:2016 (E) 2 Contents Page European foreword . 4 Introduction . 5 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 7 4 Functional requirements. 11 4.1 Types of TWS. 11 4.2 General functional requirements . 11 4.2.1 System definition . 11 4.3 LOWS . 13 4.3.1 Lookout Operated Warning System (LOWS) . 13 4.3.2 Lookout Operated Warning System with Influence Function (LOWS-I) . 14 4.4 ATWS. 15 4.4.1 Automatic Track Warning System ATWS . 15 4.4.2 Automatic Track Warning System with Influence Function (ATWS-I) . 16 4.5 SCWS . 16 4.5.1 Signal Controlled Warning System (SCWS) . 16 4.5.2 Signal Controlled Warning System with Influence Function (SCWS-I) . 17 5 Non-functional requirements . 17 5.1 Communication . 17 5.2 Reliability . 17 5.3 Availability . 17 5.4 Maintainability . 17 5.5 Functional Safety . 17 5.6 Service Life. 17 5.7 Safety for the user . 18 5.8 Environment . 18 5.8.1 General . 18 5.8.2 Protection against dust and water (IP-Codes) . 18 5.8.3 Pollution . 18 5.8.4 Compatibility with Electromagnetic Current (EMC compatibility) . 18 5.8.5 Power Supply . 18 5.8.6 External connectors and cables . 18 5.8.7 Altitude . 18 5.8.8 Pulse Pressure . 19 5.8.9 Temperature . 19 5.8.10 Humidity . 19 5.8.11 Wind . 19 5.8.12 Snow and hail . 19 5.8.13 Ice . 19 5.8.14 Solar radiation . 19 5.8.15 Lightning protection . 19 5.8.16 Fire protection . 19 5.9 Vibration and Shock . 20 5.9.1 General . 20 SIST EN 16704-2-1:2017
EN 16704-2-1:2016 (E) 3 5.9.2 Vibration . 20 5.9.3 Shock . 20 5.10 Dimension, mass, handling . 20 5.11 Control elements of the TWS . 20 5.12 Indication on the TWS . 21 5.13 Technical processing time . 21 5.14 TWS power supply and power consumption . 22 5.15 Warning in case of a safety critical failure . 22 5.16 Technical detection . 22 5.17 Speed Range for detection components . 22 5.18 TWS-Signal . 22 5.18.1 Acoustic TWS-Signal . 22 5.18.2 Optical TWS-Signals . 23 5.19 Information by Human-Machine-Interface (HMI) . 23 5.19.1 During operation . 23 5.19.2 Priority of information on the HMI . 23 5.19.3 Developing HMI . 23 5.20 Data logging . 23 5.21 User manual . 24 5.22 Marking . 24 5.23 Colour . 25 Annex A (normative)
Specification of acoustic warning signals . 26 A.1 General . 26 A.2 Sound criteria for acoustic TWS-Signals . 26 A.3 Time criteria for acoustic TWS-Signals . 27 Annex B (normative)
Specification of optical TWS signals . 28 B.1 General . 28 Bibliography . 29
SIST EN 16704-2-1:2017
EN 16704-2-1:2016 (E) 4 European foreword This document (EN 16704-2-1:2016) 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 2017, and conflicting national standards shall be withdrawn at the latest by May 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. This European Standard is one of the series EN 16704 “Railway applications – Track – Safety protection on the track during work” as listed below: — Part 1: Railway risks and common principles for protection of fixed and mobile work sites — Part 2-1: Common solutions and technology – Technical requirements for Track Warning Systems (TWS) — Part 2-2: Common solutions and technology – Technical requirements for barriers — Part 3: Competences of personnel related to work on or near the railway track 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, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 16704-2-1:2017
EN 16704-2-1:2016 (E) 5 Introduction The purpose of this standard is to define the requirements for Track Warning Systems (TWS) used to warn people about approaching trains and rail vehicles when on or near the track during their work. TWS can be subdivided into the following types: — LOWS – Lookout Operated Warning Systems; — ATWS – Automatic Track Warning Systems; — SCWS – Signal Controlled Warning Systems. Each class can be used as a warning system by itself or with an additional function that can influence approaching trains and rail vehicles. For instance LOWS-I, ATWS-I or SCWS-I (-I: influence function). This standard defines minimum system requirements for TWS. SIST EN 16704-2-1:2017
EN 16704-2-1:2016 (E) 6 1 Scope This European Standard defines minimum functional and non-functional requirements for Track Warning Systems (TWS) used to warn persons about approaching trains and rail vehicles during their work on or near the track. These systems may also have an additional function that can influence the approaching trains and rail vehicles. The influence could be a stopping, passing or other function. This European Standard is applicable to: — systems, sub-systems and components within TWS, including those containing software; — new TWS; — new integrations of systems, sub-systems and components into existing TWS; and — modifications of TWS developed according to this standard. It is also recommended to use this standard for single warning units (e.g. simple electrical horns). This European Standard does not apply to the following items: — hazards during the installation/removal of the TWS caused by trains and rail vehicles on the lines; — hazards caused by the improper use of TWS; — hazards caused by the improper behaviour of persons working on or near the track; — hazards caused by the (unauthorized) presence of persons on or near the track; — CO2-horns (tyfons), human operated pressure signal horns, flags, detonators or machine warning systems according to UIC 644; — national safety regulations to plan and operate TWS in track. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 894-3:2000+A1:2008, Safety of machinery - Ergonomics requirements for the design of displays and control actuators - Part 3: Control actuators EN 16704-1:2016, Railway applications – Track – Safety protection on the track during work – Part 1: Railway risks and common principles for protection of fixed and mobile work sites EN 50121-4, Railway applications – Electromagnetic compatibility – Part 4: Emission and immunity of the signalling and telecommunications apparatus EN 50125-3:2003, Railway applications - Environmental conditions for equipment - Part 3: Equipment for signalling and telecommunications EN 50126-1:1999, Railway applications - The specification and demonstration of Reliability, Availability, Maintainability and Safety (RAMS) - Part 1: Basic requirements and generic process SIST EN 16704-2-1:2017
EN 16704-2-1:2016 (E) 7 EN 50128, Railway applications – Communications, signalling and processing systems – Software for railway control and protection systems EN 50129, Railway applications - Communication, signalling and processing systems - Safety related electronic systems for signalling EN 50159, Railway applications - Communication, signalling and processing systems - Safety-related communication in transmission systems EN 60204-1, Safety of machinery - Electrical equipment of machines - Part 1: General requirements EN 60529, Degrees of protection provided by enclosures (IP Code) EN 61310-1, Safety of machinery - Indication, marking and actuation - Part 1: Requirements for visual, acoustic and tactile signals EN ISO 12100, Safety of machinery - General principles for design - Risk assessment and risk reduction (ISO 12100) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 16704-1:2016 and the following apply.
Figure 1 — Overview TWS family 3.1 Track Warning System TWS system which warns people of approaching trains and rail vehicles when they are on or near the track. These systems may also be able to influence the approaching trains and rail vehicles. The influence could be a stopping, passing or other function SIST EN 16704-2-1:2017
EN 16704-2-1:2016 (E) 8 3.2 human activated system TWS where the process for detecting approaching trains and rail vehicles is dependent on human interaction 3.3 technical activated system TWS where the process for detecting approaching trains and rail vehicles is independent of human interaction 3.4 Lookout Operated Warning System LOWS TWS which detects approaching trains and rail vehicles by human operated detection units including a vigilance control for human operated detection units 3.5 Automatic Track Warning System ATWS TWS which detects approaching trains and rail vehicles by technical means (e.g. treadles, axle counters) 3.6 Signal Controlled Warning System SCWS TWS which detects approaching trains and rail vehicles by data from the signalling system 3.7 TWS-input step or steps in the process of a TWS which detect approaching and/or leaving trains and rail vehicles 3.8 TWS-communications step or steps in the process of a TWS which provide communications between TWS functional units (these can be wired and/or wireless) according to EN 50159 3.9 TWS-logic step or steps in the process of a TWS to process the input and to generate warning information for the output 3.10 TWS-output step or steps in the process of a TWS
a) to warn people by TWS-Signals and/or
b) to influence approaching trains and rail vehicles 3.11 TWS-Signals acoustic and/or optical signals to warn people on or near the track about approaching trains and rail vehicles 3.12 human detection detection activated by a person (e.g. lookout) as input for TWS SIST EN 16704-2-1:2017
EN 16704-2-1:2016 (E) 9 3.13 human activation activation of a TWS-signal by a person (e.g. lookout, TWS-Operator) 3.14 human cancellation cancellation of a TWS-Signal by a person (e.g. lookout, TWS-Operator) as input for TWS 3.15 technical detection detection activated by an approaching train or rail vehicle not operated by a person (e.g. treadles, axle counters) as input for TWS 3.16 technical cancellation cancellation of a TWS-Signal not by a person (e.g. treadles, axle counters) as input for TWS 3.17 safety critical failure failure according to EN 50129, which could affect the safety integrity of the system 3.18 failure deviation from the specified performance of a system. A failure is the consequence of a fault or error in the system [SOURCE: EN 50129:2003, definition 3.1.17] 3.19 failsafe concept which is incorporated into the design of a product such that, in event of a failure, it enters or remains in safe state [SOURCE: EN 50129:2003, definition 3.1.16] 3.20 Safety Integrity Level SIL number which indicates the required degree of confidence that a system will meet its specified safety functions with respect to systematic failures [SOURCE: EN 50129:2003, definition3.1.51] 3.21 RAMS (Reliability, Availability, Maintainability, and Safety) acronym meaning a combination of reliability, availability, maintainability and safety [SOURCE: EN 50126-1:1999, definition 3.29] 3.21.1 reliability probability that an item can perform a required function under given conditions for a given time interval SIST EN 16704-2-1:2017
EN 16704-2-1:2016 (E) 10 [SOURCE: EN 50126-1:1999, definition 3.30] 3.21.2 availability ability of a product to be in a state to perform a required function under given conditions at a given instant of time or over a given time interval assuming that the required external resources are provided [SOURCE: EN 50126-1:1999, definition 3.4] 3.21.3 maintainability probability that a given active maintenance action, for an item under given conditions of use, can be carried out within a stated time interval when the maintenance is performed under stated conditions and using stated procedures and resources [SOURCE: EN 50126-1:1999, definition 3.20] 3.21.4 safety freedom from unacceptable level of risk [SOURCE: EN 50126-1:1999, definition 3.35] 3.22 safety relevant information of TWS safety relevant operational information recorded and stored in a data recorder 3.23 data recorder/black box location/locations in the TWS where safety relevant information is stored and can be accessed 3.24 safe state condition which continues to preserve safety [SOURCE: EN 50129:2003, definition 3.1.44] 3.25 TWS-Operator person who operates TWS 3.26 influence function function of a TWS to influence approaching trains and rail vehicles 3.27 vigilance control technical function to control the vigilance of a person (e.g. dead-man’s button) 3.28 announcement time period between the moment the warning starts and the moment the approaching train or rail vehicle reaches the beginning of the work site SIST EN 16704-2-1:2017
EN 16704-2-1:2016 (E) 11 3.29 technical processing time maximum time period for technically processing the steps from Input to Output, including technical latency and technical communication Note 1 to entry: The technical processing time does not include time for human reaction, time for the vigilance function, clearance time and safety margin time (see EN 16704–1:2016). 3.30 warning area area on or near the track where people are warned by TWS 3.31 interlocking interdependent liaison between the control levers or the electrical control circuits of different apparatus such as points, signals, which makes it impossible to place them in positions which are unsafe Note 1 to entry: In English, the term “interlocking” refers also to the place where interlocking is achieved. Note 2 to entry: In French, the term “enclenchement” refers also to the individual locking of an apparatus such as a pair of points. [SOURCE: IEC 60050-821:1998, 821-05-02] 3.32 rail vehicle machine designed and intended to operate signalling and control systems Note 1 to entry: Rail vehicles meet the standards for machines in running mode. 4 Functional requirements 4.1 Types of TWS TWS are LOWS, ATWS and SCWS with the same purpose (see 4.2.1). There is modularity in TWS assigned to the method/kind of input of the TWS. 4.2 General functional requirements 4.2.1 System definition 4.2.1.1 General The safety function of a TWS (LOWS, ATWS, SCWS) is: TWS shall warn people on or near the track against approaching trains and rail vehicles. NOTE For TWS-I additional safety functions will be specified in a later version of this European Standard. TWS shall have the functional components input, logic and communication and output (Figure 2). TWS-Operators interact with the TWS by Human Machine Interface (HMI) (e.g. human detection of trains, activate a warning signal or cancelling a warning signal). SIST EN 16704-2-1:2017
EN 16704-2-1:2016 (E) 12
Figure 2 — TWS and the mutual relationship of the process steps 4.2.1.2 Developing of TWS TWS shall be developed according to EN 50126-1, EN 50128 and EN 50129. 4.2.1.3 Failsafe TWS shall work failsafe according to 5.5. 4.2.1.4 Indication of operation state TWS shall have a function to indicate safe operation state. 4.2.1.5 Train detection and cancellation Train detection and cancellation can be done by technical and/or human intervention. Technical train detection shall be possible for both directions on each track. 4.2.1.6 HMI (Human-Machine-Interface) For the interaction between the TWS and the TWS-operator there shall be a HMI. 4.2.1.7 Security Safety relevant operational settings (e.g. via software or hardware button, switches) shall be protected against unauthorized operation. 4.2.1.8 Data logging It shall be possible, to make the relevant data available. SIST EN 16704-2-1:2017
EN 16704-2-1:2016 (E) 13 4.2.1.9 TWS open output The TWS shall transmit redundant information on the safe state of the TWS and on the warning status to an open output. The TWS should also transmit redundant information on the safe state of the work-site to an open output. 4.2.1.10 Influencing of a train or rail vehicles TWS-I shall be able to influence trains and rail vehicles. NOTE Will be specified in a later version of this standard. 4.2.1.11 Infrastructure compatibility The TWS shall not influence the railway infrastructure unintentionally. The TWS shall not be influenced by the railway infrastructure unintentionally. 4.2.1.12 User safety The electrical and mechanical construction of TWS shall not cause any hazards during operation, handling, (including transport, installation and removal) and maintenance. 4.2.1.13 Training of the staff The manufacturer shall provide recommendations for training to ensure safe operation of the TWS including servicing and minor repairs. 4.3 LOWS 4.3.1 Lookout Operated Warning System (LOWS)
Figure 3 — LOWS and the functional parts LOWS is a TWS which detects approaching trains and rail vehicles by human operated detection units including a vigilance control for human operated detection units. SIST EN 16704-2-1:2017
EN 16704-2-1:2016 (E) 14 LOWS consists of the following functional parts: a) LOWS input: Train Detection (Input); b) LOWS Control Unit (Logic and Communication); c) LOWS output: Warning Unit (Output). The functional parts can be combined in one device or the functional parts can be separate devices. The functional part a) receives informa
...
SLOVENSKI STANDARD
oSIST prEN 16704-2-1:2014
01-julij-2014
äHOH]QLãNHQDSUDYH=JRUQMLXVWURMSURJH=DJRWDYOMDQMHYDUQRVWLPHGGHORPQD
SURJLGHO 6NXSQHUHãLWYHLQWHKQRORJLMD7HKQLþQH]DKWHYH]DRSR]RULOQH
VLVWHPH7:6
Railway applications - Track - Safety protection on the track during work - Part 2-1:
Common solutions and technology - Technical requirements for Track Warning Systems
(TWS)
Bahnanwendungen - Oberbau - Sicherungsmaßnahmen während Gleisbauarbeiten - Teil
2-1: Allgemeine Lösungen und Technologie - Technische Anforderungen an
Warmsysteme an Gleisen
Applications ferroviaires - Voie - Protection et sécurité durant des travaux sur la voie -
Partie 2-1: Solutions communes et technologie - Exigences relatives aux dispositifs
d'annonce des circulations (TWS)
Ta slovenski standard je istoveten z: prEN 16704-2-1
ICS:
13.100 Varnost pri delu. Industrijska Occupational safety.
higiena Industrial hygiene
93.100 Gradnja železnic Construction of railways
oSIST prEN 16704-2-1:2014 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN 16704-2-1:2014
---------------------- Page: 2 ----------------------
oSIST prEN 16704-2-1:2014
EUROPEAN STANDARD
DRAFT
prEN 16704-2-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2014
ICS 93.100
English Version
Railway applications - Track - Safety protection on the track
during work - Part 2-1: Common solutions and technology -
Technical requirements for Track Warning Systems (TWS)
Applications ferroviaires - Voie - Protection et sécurité Bahnanwendungen - Oberbau - Sicherungsmaßnahmen
durant des travaux sur la voie - Partie 2-1: Solutions während Gleisbauarbeiten - Teil 2-1: Allgemeine Lösungen
communes et technologie - Exigences relatives aux und Technologie - Technische Anforderungen an
dispositifs d'annonce des circulations (TWS) Warmsysteme an Gleisen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 256.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16704-2-1:2014 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
oSIST prEN 16704-2-1:2014
prEN 16704-2-1:2014 (E)
Contents Page
Foreword . 4
Introduction . 5
1 Scope. 6
2 Normative references . 6
3 Terms and definitions . 7
4 Functional requirements . 10
4.1 Types of TWS . 10
4.2 General functional requirements . 11
4.3 LOWS. 12
4.4 ATWS . 14
4.5 SCWS. 16
5 Non-functional requirements . 19
5.1 Communication . 19
5.2 Reliability . 19
5.3 Availability . 19
5.4 Maintainability . 19
5.5 Functional Safety . 20
5.6 Service Life . 20
5.7 Safety for the user . 20
5.8 Environment . 20
5.9 Vibration and Shock . 22
5.10 Dimension, weight, handling . 22
5.11 Control elements of the TWS . 22
5.12 Indication on the TWS . 23
5.13 Processing time . 23
5.14 TWS power supply and power consumption . 23
5.15 Error warning . 23
5.16 Technical detection . 24
5.17 Speed Range for detection components . 24
5.18 TWS-Signal . 24
5.19 Information HMI . 24
5.20 Data logging . 25
5.21 User manual . 25
5.22 Marking . 26
5.23 Colour . 26
6 System approval . 26
Annex A (normative) Specification of acoustic warning signals . 27
A.1 Acoustic warning signals . 27
A.2 Time criteria for acoustic TWS-Signals . 27
Annex B (normative) Specification of optical TWS signals . 28
B.1 Optical warning signals . 28
Annex C (informative) Specification and requirements for individual warning devices . 29
C.1 Functional specifications and requirements. 29
C.2 Non-functional specifications and requirements . 29
Annex D (informative) Specification and requirements for fixed installed warning
systems on railbound construction and maintenance machines . 30
2
---------------------- Page: 4 ----------------------
oSIST prEN 16704-2-1:2014
prEN 16704-2-1:2014 (E)
Annex E (informative) Future options of TWS . 31
Bibliography . 32
3
---------------------- Page: 5 ----------------------
oSIST prEN 16704-2-1:2014
prEN 16704-2-1:2014 (E)
Foreword
This document (prEN 16704-2-1:2014) has been prepared by Technical Committee CEN/TC 256
“Railway applications”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This European Standard is one of the series EN 16704 "Railway applications – Track – Safety
protection on the track during work" as listed below:
— Part 1: Railway risks and common principles for protection of fixed and mobile work sites
— Part 2-1: Common solutions and technology – Technical requirements for Track Warning
Systems (TWS)
— Part 2-2: Common solutions and technology – Requirements for barriers
— Part 3: Competences of personnel related to work on or near the railway track
4
---------------------- Page: 6 ----------------------
oSIST prEN 16704-2-1:2014
prEN 16704-2-1:2014 (E)
Introduction
Purpose/Intention of this standard is the definition of requirements for Track Warning Systems (TWS)
used for the warning of persons on or nearby the track during their work about approaching trains or
rail vehicles.
TWS can be subdivided in following classes:
— LOWS – Lookout Operated Warning Systems;
— ATWS – Automatic Track Warning Systems;
— SCWS – Signal Controlled Warning Systems.
Each class can be realized as a warning system only or a warning system influencing approaching
trains or rail vehicles as well. For instance LOWS-S, ATWS-S or SCWS-S. (-S: stoppage function)
This standard does define minimum system requirements for TWS and shall gradually replace
national system requirements for TWS.
5
---------------------- Page: 7 ----------------------
oSIST prEN 16704-2-1:2014
prEN 16704-2-1:2014 (E)
1 Scope
This document defines minimum functional and non-functional requirements for developing a Track
Warning Systems (TWS) to warn persons during their work on or nearby the track about the
approaching of trains or rail vehicles using acoustical and visual TWS-Signals. These systems may
also be able to influence the approaching of trains and rail vehicles by stoppage function.
This European Standard is applicable:
— to systems, sub-systems and components within TWS, including those containing software; in
particular;
— to new TWS;
— to new integrations of systems, sub-systems and components into existing TWS;
— to modifications of TWS developed according to this standard.
For single warning units (e.g. simple electrical horns) it is recommended to use this standard, too.
This document does not deal with:
— hazards during the installation of the TWS caused by trains or rail vehicles on the lines;
— hazards caused by the improper use of TWS;
— hazards caused by the improper behaviour of persons working on or nearby the track;
— CO -tyfone, human operated pressure signal horns, flags, detonators or machine warning
2
systems according to UIC 644;
— national safety regulations to plan and operate TWS in track.
2 Normative references
The following referenced documents are indispensable for the application 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 842, Safety of machinery – Visual danger signals – General requirements, design and testing
EN 894-3, Safety of machinery – Ergonomics requirements for the design of displays and control
actuators – Part 3: Control actuators
EN 14033-2, Railway applications – Track – Railbound construction and maintenance machines –
Part 2: Technical requirements for working
prEN 16704-1:2014, Railway applications – Track – Safety protection on the track during work –
Part 1: Railway risks and common principles for protection of fixed and mobile work sites
EN 50121-1, Railway applications – Electromagnetic compatibility – Part 1: General
EN 50121-4, Railway applications – Electromagnetic compatibility – Part 4: Emission and immunity of
the signalling and telecommunications apparatus
EN 50125-3, Railway applications – Environmental conditions for equipment – Part 3: Equipment for
sigaling and telecommunications
EN 50126, Railway applications – The specification and demonstration of reliability, availability,
maintainability and safety
EN 50128, Railway applications – Communications, sigaling and processing systems – Software for
railway control and protection systems
6
---------------------- Page: 8 ----------------------
oSIST prEN 16704-2-1:2014
prEN 16704-2-1:2014 (E)
EN 50129, Railway applications – Communication, signaling and processing systems – Safety related
electronic systems for sigaling;
EN 50159, Railway applications – Communication, sigaling and processing systems – Safety related
communication in open transmission systems
EN 60204-1, Safety of machinery – Electrical equipment of machines – Part 1: General requirements
(IEC 60204-1:2005, modified)
EN 60529, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989 + A1:1999)
EN 61000-2-4, Electromagnetic compatibility (EMC) – Part 2-4: Environment – Compatibility levels in
industrial plants for low-frequency conducted disturbances (IEC 61000-2-4:2002)
EN 61000-4-14, Electromagnetic compatibility (EMC) – Part 4-14: Testing and measurement
techniques – Voltage fluctuation immunity test (IEC 61000-4-14:1999 + A1:2001)
EN 61310-1, Safety of machinery – Indication, marking and actuation – Part 1: Requirements for
visual, acoustic and tactile signals (IEC 61310-1:2007)
EN ISO 11201, Acoustics – Noise emitted by machinery and equipment – Determination of emission
sound pressure levels at a work station and at other specified positions in an essentially free field over
a reflecting plane with negligible environmental corrections (ISO 11201)
EN ISO 12100, Safety of machinery – General principles for design – Risk assessment and risk
reduction (ISO 12100)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in prEN 16704-1:2014 and the
following apply.
3.1
Track Warning System (TWS)
system which warns persons on or nearby the track about approaching trains or rail vehicles. These
systems may also be able to influence the approaching of trains and rail vehicles by stoppage
function.
Figure 1 — Overview TWS family
7
---------------------- Page: 9 ----------------------
oSIST prEN 16704-2-1:2014
prEN 16704-2-1:2014 (E)
3.2
human activated system
system which is dependent on human interaction in the process to detect approaching trains or rail
vehicles and to warn persons on or nearby the track
3.3
technical activated system
system which is independent on human interaction in the process to detect approaching trains or rail
vehicles and to warn persons on or nearby the track
3.4
Lookout Operated Warning System (LOWS)
TWS which detect approaching trains or rail vehicles by human operated detection units including a
vigilance control for human operated detection units
3.5
Automatic Track Warning System (ATWS)
TWS which detect approaching trains or rail vehicles by technical means (e.g. treadles
3.6
Signal Controlled Warning System (SCWS)
TWS which detect approaching trains or rail vehicles by data from the signalling system
3.7
input TWS
step or steps in the process of TWS to detect approaching and/or leaving trains or rail vehicles
3.8
communication TWS
step or steps in the process of TWS to communicate wired and/or wireless according to EN 50159
3.9
logic TWS
step or steps in the process of TWS to process the input and to generate warning information for the
output
3.10
output TWS
step or steps in the process of TWS to warn persons by warning signals and/or to influence
approaching trains or rail vehicles
3.11
TWS-signals
signals according to Annex A and Annex B
3.12
human detection
detection activated by a person (e.g. lookout) as input for TWS
3.13
human activation
activation of a TWS-signal by a person (e.g. lookout, operator)
3.14
human cancelation
cancellation of a TWS-Signal by a person (e.g. lookout, operator) as input for TWS
8
---------------------- Page: 10 ----------------------
oSIST prEN 16704-2-1:2014
prEN 16704-2-1:2014 (E)
3.15
technical detection
detection activated by an approaching train or rail vehicle not operated by a person (e.g. treadles,
axle counters) as input for TWS
3.16
technical cancelation
Cancellation of a TWS-Signal not by a person (e.g. treadles, axle counters) as input for TWS
3.17
failure (not safety relevant)
anomaly of the required functionality, without influence on the safety function of the system
3.18
error (safety relvant)
anomaly to the required functionality, with influence on the safety function of the system
3.19
failsafe
definition according to EN 50129
3.20
Safety Integrity Level (SIL)
number which indicates the required degree of confidence that a system will meet its specified safety
functions with respect to systematic failures (EN 50129)
3.21
RAMSS (Reliability, Availability, Maintainability, Safety and Security)
3.21.1
Reliability
probability that an item can perform a required function under given conditions for a given time
interval (t1, t2) (EN 50126)
3.21.2
Availability
ability of a product to be in a state to perform a required function under given conditions at a given
instant of time or over a given time interval assuming that the required external resources are
provided (EN 50126)
3.21.3
Maintainability
probability that a given active maintenance action, for an item under given conditions of use can be
carried out within a stated time interval when the maintenance is performed under stated conditions
and using stated procedures and resources (EN 50126)
3.21.4
Safety
freedom from unacceptable level of risk (EN 50126)
3.22
safety relevant information TWS
information processed by the TWS, recorded in a black box, that secured a save function
3.23
data recorder/black box
location/locations in the TWS where safety relevant information are stored and can be read out
9
---------------------- Page: 11 ----------------------
oSIST prEN 16704-2-1:2014
prEN 16704-2-1:2014 (E)
3.24
safe state
definition according to EN 50129
3.25
redundancy
definition according to EN 50129
3.26
TWS-Operator
person which operates TWS
3.27
stoppage function
function of the TWS to influence approaching trains or rail vehicles
3.28
vigilance control
technical device to control the vigilance of a person (e.g. dead-man’s button)
3.29
announcement time
period between the moment the warning starts and the moment the train passes the beginning of the
work site
3.30
processing time
maximum time period for processing the steps from Input to Output and giving acoustical and optical
TW-Signals by the warning units in each configuration in compliance with the manual
3.31
warning area
area on or nearby the track where persons are warned by TWS
3.32
Radio Block Center (RBC)
subsystem of European Train Control System (ETCS). The RBC is a computer-based system that
elaborates messages to be sent to the train on basis of information received from external trackside
systems and on basis of information exchanged with the train. The main objective of these messages
is to provide movement authorities to allow the safe movement of trains on the railway infrastructure
area under the responsibility of the RBC
3.33
interlocking
controls train movements by railway signals and block systems to ensure that trains operate safely
and over the correct route
4 Functional requirements
4.1 Types of TWS
TWS are LOWS, ATWS and SCWS with the same purpose (see 4.2.1). There is modularity in TWS
assigned to the method/kind of input of the TWS.
Components of different types of TWS may be combined according to the specification of the
manufacturers.
10
---------------------- Page: 12 ----------------------
oSIST prEN 16704-2-1:2014
prEN 16704-2-1:2014 (E)
4.2 General functional requirements
4.2.1 System definition
The safety function of a TWS (LOWS, ATWS, SCWS) is: TWS shall warn persons on or nearby the
track against approaching trains or rail vehicles.
NOTE For TWS-S additional safety functions will be specified in a later version.
TWS shall have the functional components input, logic and output (Figure 2).
Operators interact with the TWS by Human Machine Interface (HMI) (e.g. human detection of trains,
activate a warning signal or cancelling a warning signal).
Figure 2 — definition TWS and the mutual relation of the process steps
4.2.1.1 Developing of TWS
TWS shall be developed according to EN 50126-1, EN 50128, EN 50129.
4.2.1.2 Failsafe
TWS shall work failsafe according to 5.15.
NOTE In case of an error (safety relevant), the error shall be indicated on a control unit and an acoustic and
optical TWS-Signal shall be given by the warning units.
4.2.1.3 Communication
The communication between the components of TWS shall be done wired and/or wireless.
11
---------------------- Page: 13 ----------------------
oSIST prEN 16704-2-1:2014
prEN 16704-2-1:2014 (E)
4.2.1.4 Indication of operation state
TWS shall have visual or acoustic information on all warning units and control units if the system is in
safe operation mode.
4.2.1.5 Train detection and cancelation
Train detection and cancelation can be done technical and/or human intervention.
Technical train detection shall be possible for both directions.
4.2.1.6 HMI (Human-Machine-Interface)
For the interaction between the TWS and the TWS-operator there shall be a HMI.
4.2.1.7 Security
Safety relevant operational settings (e.g. via software or hardware button, switches) shall be protected
against unauthorized operation.
4.2.1.8 Data logging
It shall be possible, to make the relevant data available.
4.2.1.9 Influencing of a train or rail vehicles
TWS-S shall be able to influence trains.
NOTE Possible via e.g. GMSR, work-site signalling (traffic lights), transponder (magnetic devices to stop
trains) or ZKL RC (Zelf signalliserende Kurzschlusslanze Remote Control). For examples of best practice see
Annex xxx.
4.2.1.10 Infra compatibility
TWS shall not influence unintended the signalling system.
4.2.1.11 User safety
TWS shall not cause any hazards according to the electrical or mechanical construction during the
operation, handling, (including transport, mounting and demounting) and maintenance.
4.2.1.12 Training of the staff
The manufacturer shall provide recommendations for the training of operators/users to secure safe
operation of the TWS including servicing and minor repairs.
Documentation for the training of the trainer, operator, planner and installer shall be supported by the
manufacturer.
4.3 LOWS
4.3.1 Lookout Operated Warning System (LOWS)
LOWS is a TWS which detects approaching trains or rail vehicles by human operated detection units
including a vigilance control for human operated detection units.
12
---------------------- Page: 14 ----------------------
oSIST prEN 16704-2-1:2014
prEN 16704-2-1:2014 (E)
LOWS shall consist of three functional parts:
a) Train Detection (Input);
b) LOWS Control Unit (Process, Input);
c) Warning Unit (Output).
The functional parts shall to be connected wired or wireless.
The functional parts can be combined in one device or the functional parts can be separate devices.
The functional part Train Detection shall detect approaching trains or rail vehicles by human means.
The information of detected approaching trains or rail vehicles shall be transmitted to the LOWS
Control Unit technically, without further human action.
The functional part LOWS Control Unit shall generate with the technically transmitted information,
which shall be transmitted from the functional part Train Detection to the LOWS Control Unit, a
Warning Information. This Warning Information shall be transmitted to the Warning Units technically,
without further human action.
The functional part Warning Unit shall generate the TWS-Signals (see Annex A and Annex B)
technically based on the Warning Information, which shall be transmitted technically from the
functional part LOWS Control Unit to the Warning Units.
The cancelation of the TWS-Signal shall be done by technical or human intervention. The technical or
human intervention shall transmit the cancelation information to the LOWS Control Unit.
It shall be possible to adapt the announcement time due to the individual requirements of the work
site (e.g. individual planning of the warning area, individual planning of the functional part Train
Detection).
The LOWS Control Unit shall be able to process the transmitted information about all detected trains
or rail vehicles, which shall be sent by the functional part Train Detection.
The LOWS Control Unit shall be able to transmit the Warning information to more than one functional
part Warning Unit.
It shall be possible to activate by human intervention a TWS Signal at the LOWS Control Unit. A
vigilance control is not mandatory for this requirement.
The functional part Train Detection shall have a vigilance control. Due to the activation of the
alertness control, all warning units shall give the TWS-Signal.
4.3.2 Lookout Operated Warning System (LOWS-S)
LOWS equipped with the possibility to influence approaching trains.
NOTE Will be specified in a later version.
13
---------------------- Page: 15 ----------------------
oSIST prEN 16704-2-1:2014
prEN 16704-2-1:2014 (E)
Figure 3 — LOWS and the mutual relation of the process steps
Figure 4 — LOWS and the functional parts
4.4 ATWS
4.4.1 Automatic Track Warning System ATWS
ATWS is a TWS which detect approaching trains or rail vehicles by technical means (e.g. treadles).
14
---------------------- Page: 16 ----------------------
oSIST prEN 16704-2-1:2014
prEN 16704-2-1:2014 (E)
ATWS shall consist of three functional parts:
a) Train Detection (Input);
b) ATWS Control Unit (Process, Input);
c) Warning Unit (Output).
The functional parts shall to be connected wired or wireless.
The functional parts can be combined in one device or the functional parts can be separate devices.
The functional part Train Detection shall detect approaching trains or rail vehicles by technical means.
The information of detected approaching trains or rail vehicles shall be transmitted to the ATWS
Control Unit, technically, without further human action
The functional part ATWS Control Unit shall generate with the information, which shall be transmitted
from the functional part Train Detection to the ATWS Contr
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.