EN 12368:2015
(Main)Traffic control equipment - Signal heads
Traffic control equipment - Signal heads
This European Standard applies to signal heads with one or more signal lights of the colours red, yellow and/or green signal lights for road traffic with 200 mm and 300 mm roundels and to optical units to be integrated in signal heads to produce the individual signal lights. It defines the product characteristics for the visual, structural, environmental performances and testing of signal heads and optical units for pedestrian and road traffic use.
Anlagen zur Verkehrssteuerung - Signalleuchten
Diese Europäische Norm gilt für Signalleuchten mit einem oder mehreren Signallichtern in den Farben Rot, Gelb und/oder Grün für den Straßenverkehr mit 200 mm und 300 mm Leuchtfelddurchmesser sowie für Signalgeber, die zur Erzeugung der einzelnen Signallichter in Signalleuchten eingebaut werden. Es werden Produkteigenschaften für Sichtbarkeit, Konstruktion, Umweltverträglichkeit sowie die Prüfverfahren für Signalleuchten und Signalgeber für Anlagen im Fußgänger- und Straßenverkehrsbereich festgelegt.
Equipement de régulation du trafic - Signaux
Oprema za nadzor in vodenje cestnega prometa - Signalne luči
Ta evropski standard se uporablja za svetlobne signalne dajalce z eno ali več signalno lučjo rdeče, rumene in/ali zelene barve za cestni promet z lečami premera 200 in 300 mm in optičnimi enotami za integracijo v svetlobne signalne dajalce za proizvodnjo individualnih signalih luči. Določa lastnosti izdelka za vizualno, strukturno in okoljsko zmogljivost ter preskušanje signalnih glav in optičnih enot za pešce ter za uporabo v cestnem prometu.
General Information
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Frequently Asked Questions
EN 12368:2015 is a standard published by the European Committee for Standardization (CEN). Its full title is "Traffic control equipment - Signal heads". This standard covers: This European Standard applies to signal heads with one or more signal lights of the colours red, yellow and/or green signal lights for road traffic with 200 mm and 300 mm roundels and to optical units to be integrated in signal heads to produce the individual signal lights. It defines the product characteristics for the visual, structural, environmental performances and testing of signal heads and optical units for pedestrian and road traffic use.
This European Standard applies to signal heads with one or more signal lights of the colours red, yellow and/or green signal lights for road traffic with 200 mm and 300 mm roundels and to optical units to be integrated in signal heads to produce the individual signal lights. It defines the product characteristics for the visual, structural, environmental performances and testing of signal heads and optical units for pedestrian and road traffic use.
EN 12368:2015 is classified under the following ICS (International Classification for Standards) categories: 93.080.30 - Road equipment and installations. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 12368:2015 has the following relationships with other standards: It is inter standard links to EN 12368:2006, EN 12368:2024. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 12368:2015 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC; Standardization Mandates: M/111. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Anlagen zur Verkehrssteuerung - SignalleuchtenEquipement de régulation du traffic - Têtes de feuxTraffic control equipment - Signal heads93.080.30Cestna oprema in pomožne napraveRoad equipment and installationsICS:Ta slovenski standard je istoveten z:EN 12368:2015SIST EN 12368:2015en,fr,de01-september-2015SIST EN 12368:2015SLOVENSKI
STANDARDSIST EN 12368:20061DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12368
June 2015 ICS 93.080.30 Supersedes EN 12368:2006English Version
Traffic control equipment - Signal heads
Equipement de régulation du trafic - Signaux
Anlagen zur Verkehrssteuerung - Signalleuchten This European Standard was approved by CEN on 11 January 2015.
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, 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12368:2015 ESIST EN 12368:2015
Test, declarations and requirements . 35 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Regulation . 37 ZA.1 Scope and relevant characteristics . 37 ZA.2 Procedure for AVCP of Traffic control equipment – Signal heads . 38 ZA.2.1 System(s) of AVCP . 38 ZA.2.2 Declaration of performance (DoP) . 39 ZA.2.2.1 General . 39 ZA.2.2.2 Content . 39 ZA.2.2.3 Example of DoP . 40 ZA.3 CE marking and labelling . 42 Bibliography . 45
as a percentage of the measured values on the axis 0° horizontal and 0° vertical (the reference axis); B
as a percentage of the minimum values as defined in Table 1 required on the axis 0° horizontal and 0° vertical (the reference axis). Outside the area described in Tables 2 to 5 (as applicable) the luminous intensities shall not exceed the maximum of the relevant class of performance level. The Tables 2 to 5 contain the minimum luminous intensities in % of the values in their reference axis. Only the listed combinations of classes and performance levels shall be applied. Within the field of measurement, the light pattern shall be substantially uniform, i. e. the light intensity in each direction at each test point shall meet at least the level achieved by the next consecutive measurement. e.g. if at 0,0 the measurement is 100 and at +5 the measurement is 85 then in between the two a measurement should be at least 85. If doubt arises during the testing of luminance (test 8.2), then test 8.2 can be stopped and Uniformity test 8.3 can be completed. It should be noted that the maximum luminous intensity is defined by the classes selected by the regulatory authority from Table 1 — Luminous intensities (I) for red, yellow and green signal lights in the reference axis SIST EN 12368:2015
100 – 80 60 50
– – – – –
85 – 75 – –
80 – – 45 –
– – – – –
60 – – – 20
40 – – – – –20° 20 – – – – – 10 – means no specific values are required Table 3 — Wide beam signal (Type W) possible combinations A 1/0, A 1/1; A 2/0, A 2/1; A 3/0, A 3/1; B 1/2; B 2/1,B 2/2; B 3/2 . horiz 0° ± 2,5° ± 5° ± 10° ± 15° ± 20° ± 30° . vert 0° –1,5° –3° –5° –10°
100 – 80 60 30
– – – – –
85 – 75 – –
55 – – 35 –
– – – – –
3 – – – 8
1 – – – – –20° 2 – – – – – 2 – means no specific values are required Table 4 — Medium wide beam signal (Type M) possible combinations A 2/0, A 2/1; A 3/0, A 3/1; A 2/2; A 3/2 . horiz 0° ± 2,5° ± 5° ± 10° ± 15° ± 20° ± 30° . vert 0° –1,5° –3° –5° –10°
100 – 75 50 12,5
– – – – –
75 – 60 – –
40 – – 20 –
10 – – – –
1 – – – 6
* * * * * –20° 1,5 – – – – – 1 – means no specific values are required * means no requirements SIST EN 12368:2015
100 95 70 40 6
75 90 – – –
65 – 45 – –
15 – – 10 –
1,5 – – – 5
* * * * *
* * * * * –20° * * * * * * * – means no specific values are required * means no requirements 6.5 Luminance uniformity The luminance uniformity of the roundel as the ratio of the lowest and greatest luminance Lmin : Lmax shall be ≥1 : 10 for types b, t and M and ≥1 : 15 for type N. 6.6 Maximum phantom signal For each signal colour the maximum phantom signal Iph for light incident at an angle of 10° to the reference axis shall comply with of Table 6, where Is is the actual measured luminous intensity I of the signal light: Table 6 — Requirement for the ratio of Is to Iph Signal light function Class 1 Class 2 Class 3 Class 4 Class 5 red, yellow >1 >5 >4 >8 >16 green >1 >5 >8 >16 >16 The phantom signal is measured in laboratory conditions for a single geometrical situation (refer to 8.4), but illustrates the phantom light that can be seen in a signal light in a range of situations with the sun in a low position behind the observer. Phantom light may cause ambiguity as to which signal lights are on or off unless it is weak in comparison to the signal itself. Phantom light can be reduced by particular designs of the optics, black interiors, anti-phantom devices or hoods etc. Care shall be taken to ensure that the phantom light is weak in all relevant situations. NOTE Traditional signal lights with incandescent lamps and roundels with the inherent colour of the signal lights, either red, yellow or green. This points to a lower value of Iph for green than for red or yellow during measurement, because the illumination is by reddish light (CIE illuminant A, refer to 8.4). However, illumination by the sun – even in a low position – is not as reddish and does not point to quite as low a value for green. This is the reason that some of the classes (classes 3 and 4) have higher requirements to the ratio of Is to Iph for green than for red and yellow - higher ratios can be reached during the measurement of traditional signal lights and are needed as a safeguard in practical conditions. This explanation does not apply for signal lights with non-coloured optics, but it may still be a concern in some cases to ensure that the phantom signal of green signal lights is particularly weak. 6.7 Colours of signal lights The colours of signal lights are red, yellow and green and they shall comply with Table 7 when using anti-phantom devices and including combined colours from real signal and all classes of phantom light, except class 1. SIST EN 12368:2015
EN 60598-1:2008, 4.13.4 0,51 kg ball of 50 mm diameter dropped from: class IR 1 class IR 2 class IR 3 100 mm 400 mm 1 300 mm NOTE Surface cracks are allowed providing complete penetration does not occur, i.e. the integrity of the seal is not broken. Table 9 — Constructional integrity Random vibration Frequency range: 10 Hz to 200 Hz EN 60068-2-64
Test Fh, Duration 2 h in each of 3 axes ASD levels: 0,02 g2/Hz (10 Hz to 50 Hz) 0,02 g2/Hz (50 Hz to 200 Hz with slope 3 dB/octave). Overall RMS acceleration 1,2 g Table 10 — Water and Dust Ingress Water penetration and dust
EN 60529, test 13 and 14 As required for the specified IP rating NOTE Ingress is allowed into the signal head provided it does not affect its performance either electrical-ly or optically. Table 11 —Tolerance to temperature, damp heat and solar radiation Test
Class A Class B Class C Dry heat EN 60068-2-2 Test Bb preconditioning none initial examination visual inspection, operational test condition of the specimen during exposure period equipment switched on as specified in 11.1 conditioning temperature 60 °C 55 °C 40 °C conditioning time 16 h loading and measurement during exposure period visual inspection during last hour at expo-sure temperature and during cooling period non-standard recovery none final measurement visual inspection, operational test Cold EN 60068-2-1 preconditioning none initial examination visual inspection, operational test condition of the specimen during exposure period equipment off until the final hour conditioning temperature –15 °C –25 °C –40 °C conditioning time 16 h loading and measurement during exposure period visual inspection during last hour at expo-sure temperature and during heating period non-standard recovery none final measurement visual inspection, operational test Change of temperature lower temperature TA –15 °C –25 °C –40 °C SIST EN 12368:2015
Class A Class B Class C EN 60068-2-14 Test Nb (This test may be carried out instead of the dry heat and cold test.)
upper temperature TB +60 °C +55 °C +40 °C rate of change of temperature 1 °C/min number of cycles 1 initial examination visual inspection, operational test exposure time t1 16 h measurements during exposure and time of execution visual inspection, operational test during the last hour of exposure time t1 at lower temperature and during cooling period in 5 °C-intervals; during the last hour of exposure time t1 at upper temperature and during heating period in 5 °C-intervals recovery
final measurements visual inspection, operational tests Damp heat, cyclic EN 60068-2-30 Test Db air temperature 40 °C number of cycles 2 initial examination visual inspection, operational test condition of specimens during expo-sure
mounting or support
variant 2 intermediate measurements visual inspection, operational test during first 3 h of both cycles, and cool down period of the 2nd cycle recovery at standard atmospheric conditions, 2 h electrical and mechanical final measurement visual inspection, operational test within
30 min after recovery is finished Solar radiation incidence to the front of the signal under 45° EN 60068-2-5 Test Sa preconditioning
initial examination visual inspection, operational test substrate for specimen, position of the irradiation measurement plane / test procedure and object of the test B equipment on and fully loaded, this test may be carried out as an alternative to the dry heat test Bb air temperature inside the test cham-ber during irradiation 40 °C maximum permissible air velocity inside the test chamber 2 m/s humidity conditions / test duration 1 cycle SIST EN 12368:2015
Class A Class B Class C loading and measurement during exposure (measurement of the tem-perature of the specimen included) equipment on as specified in 11.1 recovery
final measurements visual inspection, operational test NOTE Visual inspection means to look for physical problems. Operational test means to look for correct operation of the light source. 8 Optical test methods 8.1 General The described test methods are for indoor (laboratory) measurements in an environment of draft-free air and a temperature of (25 ± 2) °C. The photometer or spectrophotometer used for the measurement of luminous intensity and luminance shall be stable, not subject to fatigue and have a linear response in the relevant range. In addition, the spectral sensitivity shall closely follow the CIE spectral luminous efficiency curve V() in order to ensure a maximum error of 3 % even for light sources with emission in narrow bands of wavelengths such as red, yellow and green LED’s. NOTE The photometer or spectrophotometer may be subjected to the following requirements according to CIE 69: — V f1 ≤ 3 % — Linearity error f3 ≤ 1 % — Display unit error
f4 ≤ 3 % — Fatigue error
f5 ≤ M,5 % — Temperature coefficient
. ≤ M,2 % / K The signal head shall be operated with the manufacturer's equipment. The supplier of the signal head shall specify the operating voltage for the tests. He shall declare the operational tolerances of this value. For all light sources the specification from the manufacturer shall include nominal flux/luminous intensity relative to the specified voltage/wattage and the position of the source in the optical geometry of the signal. The manufacturer shall provide the signal head with light sources and specifications (for the luminous flux or luminous intensity measurements). 8.2 Measurement of luminous intensities The luminous intensity is measured with the optical unit on a goniometer. The angles in Tables 2, 3, 4 and 5 are chosen to correspond with a goniometer, where the horizontal axis is fixed and the vertical axis is moveable in space, see Figure 1 (type 1 CIE 70:1987). For a goniometer with another arrangement the angles have to be recalculated correspondingly (see CIE 54:2001, Annex B). The distance of measurement shall be such that the inverse square distance law is applicable (I = r2E). The measuring equipment shall be such that the angular aperture of the detector viewed from the reference centre of the lamp is ≤ 1M’ (minutes of arc). The total effect of systematic and random errors in the goniometer shall not exceed: a) For measurement of luminous intensity: 5 % of the actual intensity SIST EN 12368:2015
: 0,4 Light sources shall be suitably aged so that their electrical and optical characteristics are stable. Prior to measurement, the optical unit shall have been in operation in order to stabilize. Red and green optical units are stabilized for at least 30 min with constant light after which measurements can be performed at leisure. Yellow optical units are stabilized for 15 min in a flashing mode with (60 ± 1) flashes per minute (1 Hz) and a light dark ratio of 1:1 after which measurements can be performed with constant light within at most 2 min. NOTE The light output from some yellow optical units based on yellow LED’s is particularly sensitive to temperature rise from self-generated heating during operation. However, yellow optical units are not operated continuously during long intervals and, therefore, it is not necessary to require the same stabilization procedure for yellow as for red and green optical units.
Figure 1 — Goniometer for measuring luminous intensities with fixed horizontal axis X 8.3 Measurement of luminance for uniformity tests The light emitting surface of an optical unit shall appear as essentially circular, not hexagonal, elliptical or any other characteristic shape deviating from circular. Local luminance values of the light emitting surface shall be measured on the reference axis with a circular measuring field of a diameter of 25 mm. This field is moved by translation in both directions, or rotation about the optical axis in successive steps of a maximum pitch of 25 mm (in any direction) so as to have covered the entire light emitting surface. For those cases, where the measuring field is fully within a central circular area of the light emitting surface of a diameter of 180 mm for 200 mm roundels and 270 mm for 300 mm roundels, the smallest and the greatest luminance values are selected and the luminance ratio is calculated as the ratio of the two. SIST EN 12368:2015
The circular measuring field of 25 mm ca
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The standard EN 12368:2015 establishes critical guidelines for traffic control equipment, specifically focusing on signal heads that exhibit one or more signal lights in the colors red, yellow, and/or green. The scope of this European Standard encompasses signal heads featuring roundels of 200 mm and 300 mm, catering to both pedestrian and road traffic. One of the notable strengths of EN 12368:2015 is its comprehensive definition of product characteristics, which ensures that signal heads meet essential visual, structural, and environmental performance criteria. This clarity reduces ambiguity in manufacturing and maintenance, leading to enhanced safety for road users. Additionally, the standard emphasizes the importance of testing, which is vital for determining the reliability and effectiveness of signal heads and their optical units. By mandating rigorous performance evaluations, EN 12368:2015 contributes to a more uniform and dependable approach to traffic control equipment, fostering better traffic management across Europe. The relevance of this standard cannot be overstated; as urban areas continue to grow and traffic increases, the need for clearly defined and reliable traffic control mechanisms becomes paramount. EN 12368:2015 addresses these demands by ensuring that signal heads not only meet aesthetic requirements but also function effectively under various environmental conditions. These attributes make it an essential document for manufacturers, traffic engineers, and regulatory bodies aimed at improving road safety and efficiency.
La norme EN 12368:2015 se concentre sur les équipements de contrôle de la circulation, en particulier les têtes de signalisation. Son champ d'application est clairement défini et couvre les têtes de signalisation dotées d'un ou plusieurs feux de signalisation, y compris les couleurs rouge, jaune et/ou vert, destinées à la circulation routière avec des ronds de 200 mm et 300 mm. De plus, elle traite des unités optiques qui doivent être intégrées dans les têtes de signalisation pour générer les feux individuels. Parmi les points forts de cette norme, on trouve sa capacité à standardiser les caractéristiques des produits, en mettant l'accent sur les performances visuelles, structurelles et environnementales des têtes de signalisation et des unités optiques. Cela permet d’assurer une qualité et une homogénéité dans les dispositifs utilisés pour la régulation du trafic, ce qui est crucial pour la sécurité routière. Les procédures de test détaillées fournies par la norme garantissent que les équipements répondent à des critères de performance rigoureux, renforçant ainsi la fiabilité des systèmes de signalisation. La norme EN 12368:2015 revêt une grande pertinence dans le contexte actuel de l'urbanisation croissante et de l'augmentation du trafic routier. En fournissant un cadre standardisé pour la fabrication et l’utilisation des têtes de signalisation, elle contribue à une meilleure gestion du trafic, favorisant la sécurité des usagers de la route, y compris les piétons. Son application aide les fabricants et les autorités à répondre efficacement à des besoins de mobilité éclairés et responsabless. De plus, elle favorise l'harmonisation au sein des États membres de l'Union européenne, réduisant ainsi les variations de qualité et de performance des équipements de signalisation. En résumé, la norme EN 12368:2015 est un document essentiel qui établit des exigences précises pour les équipements de signalisation routière. Sa structure rigoureuse et ses critères de performance en font un outil indispensable pour les professionnels du secteur souhaitant garantir une signalisation efficace et sûre sur les routes.
Die Norm EN 12368:2015 stellt einen bedeutenden Beitrag zur Standardisierung von Verkehrssteuerungsanlagen dar, speziell in Bezug auf Signalköpfe. Sie umfasst Signalköpfe mit ein oder mehreren Signalleuchten in den Farben Rot, Gelb und/oder Grün für den Straßenverkehr, und behandelt dabei runde Signalanzeigen mit Durchmessern von 200 mm und 300 mm. Diese umfassende Regelung ist besonders relevant für die Gestaltung und den Einsatz von Signalköpfen in urbanen und ländlichen Verkehrssystemen. Ein herausragendes Merkmal der Norm ist, dass sie die Produktmerkmale für die visuellen, strukturellen und umwelttechnischen Leistungen sowie die Prüfmethoden von Signalköpfen definieren. Dies gewährleistet, dass die Signallichter nicht nur funktional, sondern auch leistungsfähig und zuverlässig sind. Die klare Definition der Anforderungen trägt dazu bei, die Sicherheit im Straßenverkehr zu erhöhen, indem sichergestellt wird, dass die Signallichter für Fußgänger und Fahrzeuge die notwendigen Sichtbarkeitsstandards erfüllen. Ein weiterer starker Punkt der EN 12368:2015 ist die Integration optischer Einheiten in die Signalköpfe. Diese Funktion ermöglicht es, maßgeschneiderte Signallösungen zu entwickeln, die die Sichtbarkeit unter verschiedenen Bedingungen verbessern, was besonders in dicht besiedelten Gebieten von Bedeutung ist. Die Norm fördert somit nicht nur die Standardisierung, sondern auch die Innovation im Bereich der Verkehrstechnik. Mit der großen Relevanz der Norm im Kontext der zunehmenden Urbanisierung und der damit verbundenen Verkehrsdichte spielt die EN 12368:2015 eine entscheidende Rolle bei der Gewährleistung eines sicheren und effizienten Verkehrsflusses. Diese Norm bietet somit einen klaren Leitfaden für die Hersteller und Betreiber von Signalsteuerungsausrüstungen und unterstützt sie dabei, die Anforderungen des modernen Straßenverkehrs zu erfüllen.
SIST EN 12368:2015は交通制御機器に関する重要な標準であり、特に信号機の信号ヘッドに焦点を当てています。この標準は、赤、黄、緑の信号灯を備えた信号ヘッドに適用され、200mmおよび300mmのラウンドに対応しています。信号機の視覚的、構造的、環境的性能を定義し、歩行者や道路交通用の信号ヘッド及び光学ユニットの試験における要件を明確に示しています。 この標準の強みは、その包括的な範囲です。信号機に必要とされる品質基準を明示し、信号灯の視認性と安全性を確保するための具体的な性能基準を設けています。特に、視覚的性能に関する基準が設定されていることで、異なる環境や条件下でも一貫したパフォーマンスを保証することができます。さらに、構造的耐久性や環境影響に関するテストも含まれており、これにより信号機の信頼性が向上し、長期的に安全な交通管理をサポートします。 本標準は、EU域内における交通管理における関連性も高く、メンテナンスの容易さや故障率の低さを実現するための指針を提供しています。そのため、交通信号の設計や設置を行う業者や行政機関にとって、非常に価値のある資料と言えます。EN 12368:2015を遵守することで、交通安全を向上させるだけでなく、持続可能な交通環境の構築にも寄与します。 全体として、SIST EN 12368:2015は信号ヘッドに関する非常に重要な標準であり、その使用と採用は現代の交通制御システムにおける品質と安全性の向上に直接貢献します。
SIST EN 12368:2015 표준은 도로 교통을 위한 신호등 장비에 대한 포괄적인 기준을 제시하고 있습니다. 이 표준은 200mm 및 300mm의 원형 신호등을 포함하여, 적색, 황색 및/또는 녹색 신호등을 가진 신호 헤드와 그 신호 헤드에 통합될 수 있는 광학 유닛에 적용됩니다. 이 표준의 강점 중 하나는 신호 헤드와 광학 유닛의 시각적, 구조적 및 환경적 성능과 테스트에 대한 명확한 제품 특성을 규정하고 있다는 점입니다. 이러한 규정은 도로 및 보행자 교통의 안전성과 효율성을 높이는 데 기여하며, 다양한 환경 조건에서도 안정적인 성능을 보장할 수 있도록 설계되었습니다. 또한, EN 12368:2015 표준은 유럽 전역에서 통일된 규격을 제공함으로써, 국가 간의 일관성을 유지하는 데 중요한 역할을 합니다. 이는 국제적으로 교통 신호 장비의 품질을 보장하고, 다양한 지역에서 일관된 교통 신호 체계를 구축하는 데 기여합니다. 이러한 점에서 이 표준은 특히 현대 교통 기술 및 안전 기준에 발맞춘 필수적이고 실용적인 문서라고 할 수 있습니다. 결론적으로, SIST EN 12368:2015는 신호등 장비의 성능과 품질을 보장하는 데 필수적인 기준을 제공하며, 도로 안전을 높이고 효율적인 교통 관리를 위한 중요한 참고 자료로 자리 잡고 있습니다.
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