Passive safety of support structures for road equipment - Requirements, classification and test methods
This European Standard specifies performance requirements and defines levels in passive safety terms intended to reduce the severity of injury to the occupants of vehicles impacting with the permanent road equipment support structures. Consideration is also given to other traffic and pedestrians. Three energy absorption types are considered and test methods for determining the level of performance under various conditions of impact are given.
This European Standard excludes vehicle restraint systems, noise barriers and transilluminated traffic bollards. It also excludes temporary traffic control devices.
Passive Sicherheit von Tragkonstruktionen für die Straßenausstattung - Anforderungen und Prüfverfahren
Diese Europäische Norm legt Leistungsanforderungen fest und definiert Leistungsklassen hinsichtlich der passiven Sicherheit, mit dem Ziel, den Grad der Verletzungen, die Fahrzeuginsassen beim Anprall an eine dauerhafte Tragkonstruktion für die Straßenausstattung erleiden können, zu vermindern. Dabei werden andere Fahrzeuge sowie Fußgänger ebenfalls berücksichtigt. Es werden drei Arten der Energieabsorption behandelt. Prüfverfahren zur Bestimmung der Leistungsklassen unter verschiedenen Anprallbedingungen sind angegeben.
Fahrzeugrückhaltesysteme, Lärmschutzwände und innen beleuchtete Verkehrsleitsäulen sind nicht Gegenstand dieser Norm. Die Norm gilt ebenfalls nicht für Gegenstände, die zur vorübergehenden Führung des Verkehrs in Arbeitsstellen eingesetzt werden.
Sécurité passive des structures supports d'équipements de la route - Prescriptions, classification et méthodes d'essai
La présente Norme européenne spécifie les exigences de performances et définit les niveaux en termes de
sécurité passive destinés à réduire la gravité des blessures des occupants de véhicules en cas d'impact avec
les structures supports des équipements de la route permanents. D'autres éléments comme la circulation et
les piétons sont également pris en compte. La présente norme considère trois types d'absorption d'énergie et
définit des méthodes d'essai pour déterminer le niveau de performance dans différentes conditions d'impact.
La présente Norme européenne exclut les dispositifs de retenue des véhicules, les barrières antibruit et les
bornes lumineuses, ainsi que les dispositifs de signalisation temporaire de chantier.
Pasivna varnost nosilnih konstrukcij za opremo cest - Zahteve, razvrstitev in preskusne metode
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Passive safety of support structures for road equipment - Requirements, classification and test methodsPasivna varnost nosilnih konstrukcij za opremo cest - Zahteve, razvrstitev in preskusne metodeSécurité passive des structures supports d'équipements de la route - Prescriptions et méthodes d'essaiPassive Sicherheit von Tragkonstruktionen für die Straßenausstattung - Anforderungen und PrüfverfahrenTa slovenski standard je istoveten z:EN 12767:2007SIST EN 12767:2008en,de93.080.30ICS:SIST EN 12767:20021DGRPHãþDSLOVENSKI
STANDARDSIST EN 12767:200801-marec-2008
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12767November 2007ICS 93.080.30Supersedes EN 12767:2000
English VersionPassive safety of support structures for road equipment -Requirements, classification and test methodsSécurité passive des structures supports d'équipements dela route - Prescriptions et méthodes d'essaiPassive Sicherheit von Tragkonstruktionen für dieStraßenausstattung - Anforderungen und PrüfverfahrenThis European Standard was approved by CEN on 23 September 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12767:2007: E
EN 12767:2007 (E)
2 Contents Page Foreword.3 Introduction.4 1 Scope.5 2 Normative references.5 3 Terms and definitions.5 4 Test parameters.8 4.1 General parameters.8 4.2 Backfill types.9 4.3 Particular test parameters for different roadside objects.10 5 Requirements.11 5.1 General.11 5.2 Basic requirements.12 5.3 Additional requirements for cantilever and gantry sign supports.13 5.4 Deemed to comply.13 5.5 Selection of items for test and product families.13 5.6 Non-harmful support structures.15 6 Impact test method.15 6.1 Test site.15 6.2 Test vehicle.15 6.3 Test item.17 6.4 Installation.17 6.5 Position of the impact point and impact angle.18 6.6 Test data to be recorded.19 6.7 Test vehicle impact and exit speed.19 6.8 Test vehicle approach angle.20 6.9 Test vehicle instrumentation.21 6.10 Photographic coverage.21 6.11 Test report.22 6.12 Test data decimal rounding.22 Annex A (normative)
Backfill types.23 Annex B (normative)
Compaction of the backfill soil.24 Annex C (normative)
Evaluation of the performance of HE and LE lighting columns
within a family.25 Annex D (normative)
Test report.26 Annex E (normative)
Vehicle data and dimensions.29 Annex F (normative)
Deemed to comply.31 Annex G (informative)
Bogie vehicle.32 Annex H (informative)
Roof deformation.33 Bibliography.34
EN 12767:2007 (E) 3 Foreword This document (EN 12767:2007) has been prepared by Technical Committee CEN/TC 226 “Road equipment”, the secretariat of which is held by AFNOR. 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 2008, and conflicting national standards shall be withdrawn at the latest by May 2008. This document supersedes EN 12767:2000. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, 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.
EN 12767:2007 (E)
4 Introduction The severities of accidents for vehicle occupants are affected by the performance of support structures for items of road equipment under impact. Based on safety considerations, these can be made in such a way that they detach or yield under vehicle impact. This European Standard provides a common basis for testing of vehicle impacts with items of road equipment support. This European standard considers three categories of passive safety support structures: high energy absorbing (HE); low energy absorbing (LE); non-energy absorbing (NE). Energy absorbing support structures slow the vehicle considerably and thus the risk of secondary accidents with structures, trees, pedestrians and other road users can be reduced. Non-energy absorbing support structures permit the vehicle to continue after the impact with a limited reduction in speed. Non-energy absorbing support structures may provide a lower primary injury risk than energy absorbing support structures. In this European Standard, several levels of performance are given using the two main criteria related to the performance under impact of each of the three energy absorbing categories of support structure. Support structures with no performance requirements for passive safety are class 0. There are four levels of occupant safety. Levels 1, 2 and 3 provide increasing levels of safety in that order by reducing impact severity. For these levels two tests are required: test at 35 km/h to ensure satisfactory functioning of the support structure at low speed. test at the class impact speed (50, 70 and 100) as given in Table 1. Level 4 comprises very safe support structures classified by means of a simplified test at the class impact speed. All the tests use a light vehicle to verify that impact severity levels are satisfactorily attained and compatible with safety for occupants of a light vehicle. The different occupant safety levels and the energy absorption categories will enable national and local road authorities to specify the performance level of an item of road equipment support structures in terms of the effect on occupants of a vehicle impacting with the structure. Factors to be taken into consideration include: perceived injury accident risk and probable cost benefit; type of road and its geometrical layout; typical vehicle speeds at the location; presence of other structures, trees and pedestrians; presence of vehicle restraint systems.
EN 12767:2007 (E) 5
1 Scope This European Standard specifies performance requirements and defines levels in passive safety terms intended to reduce the severity of injury to the occupants of vehicles impacting with the permanent road equipment support structures. Consideration is also given to other traffic and pedestrians. Three energy absorption types are considered and test methods for determining the level of performance under various conditions of impact are given. This European Standard excludes vehicle restraint systems, noise barriers and transilluminated traffic bollards. It also excludes temporary traffic control devices. 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 40-3-2, Lighting columns - Part 3-2: Design and verification-Verification by testing EN 40-3-3, Lighting columns - Part 3-3: Design and verification-Verification by calculation EN 933-1, Tests for geometrical properties of aggregates - Part 1: Determination of particle size distribution - Sieving method EN 933-2, Tests for geometrical properties of aggregates — Part 2: Determination of particle size distribution — Test sieves, nominal size of apertures EN 1317-1, Road restraint systems — Part 1: Terminology and general criteria for test methods ISO 6487, Road vehicles — Measurement techniques in impact tests — Instrumentation ISO 10392, Road vehicles with two axles — Determination of centre of gravity 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 impact test test where a test vehicle impacts a test road equipment support structure item 3.2 impact angle angle between the intended direction of traffic and the approach path of the test vehicle into the test item, which is oriented as it would when typically in service 3.3 impact point initial point of impact between the test vehicle and the test item 3.4
impact speed, vi speed of the vehicle measured along the test vehicle approach path at a point no further than 6 m before the impact point
EN 12767:2007 (E)
6 NOTE For further details, see 6.7.
exit speed, ve speed of the test vehicle after impact with the test item, measured along the line of the extended approach path at a point 12 m beyond the impact point NOTE For further details, see 6.7. 3.6 test vehicle
commercially available production model passenger car used in impact tests to evaluate the performance of a test item 3.7 test item complete system of a support structure including the road equipment to be supported 3.8
support structure system used to support items of road equipment NOTE Items of equipment may include luminaires, traffic signs, traffic signals, telephones and utility cables. The system includes posts, poles, structural elements, foundations, detachable mechanisms, if used, and any other components used to support the particular item of equipment. 3.9 lighting column support intended to hold one or more luminaires, consisting of one or more parts: a post, possibly an extension piece and, if necessary, a bracket NOTE It does not include columns for catenary lighting. 3.10 utility pole structure used to support power transmission or telecommunication cables 3.11 cantilever support support system with a single post and a cantilever arm that supports signs, signals or other equipment mounted over traffic lanes 3.12 gantry support support system spanning a carriageway with one or more posts on each side of carriageway that supports signs, signals or other equipment mounted over the traffic lanes 3.13 ASI Acceleration Severity Index value calculated from the triaxial vehicle accelerations NOTE The maximum ASI value is considered as an assessment of the accident severity for the occupants of the impacting vehicle. ASI is a non-dimensional quantity. ASI is calculated in accordance with EN 1317-1. 3.14 THIV Theoretical Head Impact Velocity velocity, expressed in km/h, where a hypothetical "point mass" occupant impacts the surfaces of a hypothetical occupant compartment
EN 12767:2007 (E) 7 NOTE THIV is calculated in accordance with EN 1317-1. 3.15 ballast mass added to a vehicle other than dummy and/or instrumentation, to simulate cargo and/or achieve desired inertial test mass 3.16
dummy artefact or surrogate occupant used to simulate the effects of and/or study the dynamic response of an occupant in the test vehicle 3.17
kerb mass mass of the test vehicle type, with standard equipment, maximum capacity of engine fuel, oil and coolant NOTE It does not include occupants and cargo. 3.18 inertial test mass mass of the test vehicle including fluids (not necessarily the maximum capacity of fluids), and all items rigidly attached to the vehicle’s structure, including a ballast and instrumentation, but excluding a dummy 3.19
gross static mass total vehicle static mass sum of inertial test mass and mass of the dummy 3.20
bending moment resistance of a lighting column resistance to bending moment Mu at ground level
NOTE bending moment resistance of a lighting column is calculated or tested in accordance with EN 40-3-2 and 40-3-3. 3.21
mass of a lighting column total mass of the column above ground level including shaft and bracket arm, if fitted NOTE Luminaires, connection devices and cables are excluded. 3.22
length of a column length of a column (h + w/2) is the height of the column (h) plus half of the horizontal projection of the bracket (w) NOTE h and w are defined by EN 40-1.
3.23 product family product series of the same type in various sizes, made from the same materials using the same design and general construction method, and having the same mechanism or construction designed to separate, break or deform on impact
EN 12767:2007 (E)
8 4 Test parameters 4.1 General parameters 4.1.1 Speed class The manufacturer shall select the speed classes under which the support structure is tested from Table 1. A test shall be carried out at each of the two impact speeds for the selected speed class, except in the case of non-harmful small support structures described in 5.6. Table 1 — Impact speeds Speed class km/h Impact speeds km/h 50 35 and 50 70 35 and 70 100 35 and 100
4.1.2 Energy absorption categories Support structures shall be classified according to the energy absorbing category for the selected speed class related to the exit speed in Table 2. The categories are High Energy absorbing (HE), Low Energy absorbing (LE) and Non-Energy absorbing (NE) support structures. Table 2 — Energy absorption categories Impact speed, vI km/h 50 70 100 Energy absorption category Exit speed, ve km/h HE ve = 0 0 ≤ ve ≤ 5 0 ≤ ve ≤50 LE 0 < ve ≤5 5 < ve ≤ 30 50 < ve ≤ 70 NE 5 < ve ≤ 50 30 < ve ≤70 70 < ve ≤ 100
If the actual impact speed is not the nominal speed but is still within permitted tolerances given in 6.7, the measured exit speed used for energy absorption categorisation according to Table 2 shall be adjusted, in relation to the actual measured impact speed, to the value of adjusted exit speed given by the formula VVVVSPEEDEXITADJUSTEDSPEEDEXITMEASUREDSPEEDIMPACTMEASUREDSPEEDIMPACTNOMINAL=+−222
(1) For a combination of a high impact speed and low exit speed, the formula returns invalid results. When the sum under the square root is a negative number, the measured exit speed is of such low value that the adjusted exit speed goes below zero. For such cases theoretical adjustments are not appropriate and the exit speed shall be taken as 0 km/h. 4.1.3 Levels of occupant safety Support structures shall be classified in terms of the occupant safety level by means of the ASI and THIV values, related to the speed class and energy absorbing categories in Table 5. Occupant safety level NE4 is restricted to non-harmful products, as described in 5.6.
EN 12767:2007 (E) 9 4.2 Backfill types The manufacturer shall select the type(s) of backfill and foundation to be used in the tests from those given in Table 3.
EN 12767:2007 (E)
Table 3 — Backfill type Backfill type Name Definition
S Standard soil Clause A.1 R Rigid Clause A.2 X Special
By the manufacturer NOTE Standard soil is recommended when testing new support structures.
The backfill types are described in Annex A. The control and installation of the backfill is described in Annex B. 4.3 Particular test parameters for different roadside objects 4.3.1 Lighting columns Luminaires and cables to luminaires shall be installed when a lighting column is tested, including typical underground cables and connection boxes and/or fuse units if the lighting column is intended for use with such items. Overhead cables need not be installed for the impact test. However, if overhead cables are to be used in actual installations, the effect of the overhead cable and its fixing arrangement shall be known from other tests with similar columns. Underground cables shall be fixed outside the backfill volume in such a way that that the fixing does not allow the cable to move from the fixing point during the test. Overhead cables shall to be installed to simulate the fixing on adjacent columns/posts in service. 4.3.2 Traffic sign supports A sign plate shall be installed when a sign support is tested. Luminaires or transilluminated signs or other electrical equipment and cables including typical underground cables and connection boxes and/or fuse units, shall be installed if the sign support is intended for use with such items. 4.3.3 Traffic signal supports The maximum intended number of signal heads together with cables including underground cables, connection boxes and/or fuse units shall be installed when a traffic signal support is tested. 4.3.4 Utility poles Overhead cables are needed in the impact test unless the effect of the overhead cable and its fixing type on the performance is known from other tests with a similar utility pole type. At least three utility poles shall be installed when overhead cables are used. 4.3.5 Mailboxes Mailboxes shall be tested with the maximum mass of mail for which they are intended, typically 0,5 kg/dm³ of the volume of the mailbox. 4.3.6 Pedestrian restraint systems If pedestrian restraint systems are evaluated according to this standard, they shall at a minimum be tested for the risk of occupant compartment penetration whilst impacting against the terminal, in the direction of the longitudinal axis of the system, and any other location and angle that may be considered dangerous.
EN 12767:2007 (E) 11 NOTE A recommendation is to use one of the tests TC 1.1.50, TC 1.1.80 or TC 1.1.100 of EN 1317-3 as a reference to determine a comparable test situation. 4.3.7 Multilegged supports For multilegged support structures, with intended installation perpendicular to the carriageway, and where the projected clear openings at the 20 ° impact direction between the support structure legs are not less than 1,5 m, the tests shall be carried out against one leg with the test vehicle impact point central to that leg. Where the same projected clear openings between legs are less than 1,5 m, the tests shall be carried out against two legs with the test vehicle impact point aligned midway between two supports. The test results are valid for sign plates and fixings that do not restrain the impacted legs significantly more than in the specific tests. 4.3.8 Other support structures Support structures, such as multipurpose supports, camera supports, weather and traffic monitoring device support, advertisement installations or other items not specified above, may also be tested in accordance with this European Standard. In this case the test configuration shall be based on the principles described in 4.3.1 to 4.3.7. 5 Requirements 5.1 General The requirements are divided into two sections: basic requirements (5.2); additional requirements for cantilever and gantry sign supports (5.3). Class 0 has no performance requirements and no test is required. Performance type of each tested support structure is expressed as a combination of speed class, energy absorption category and occupant safety level, determined by the alternatives in Table 4, and noted in the corresponding format, e.g. 100HE2, 70LE1. Table 4 — Performance types
Alternatives Clause Speed class 50, 70 or 100 4.1.1 Energy absorption category HE, LE or NE 4.1.2 Occupant safety level 1, 2, 3 or 4 4.1.3
In order to qualify as a certain type, the support structure shall meet the basic requirements of 5.2 and the additional requirements of 5.3 for both the high speed (50 km/h, 70 km/h or 100 km/h) and the low speed (35 km/h) tests. The ASI and THIV values shall be less than the maximum limits in both corresponding tests as given in Table 5.
EN 12767:2007 (E)
12 5.2 Basic requirements 5.2.1 Predictable behaviour The test item shall technically behave in a manner predicted by the manufacturer, in terms of shearing or detaching, deforming only, or deforming and shearing. The levels of occupant safety and exit speed need not be predicted. If the test item fails to behave in the manner predicted, a performance class shall not be declared. 5.2.2 Road user or vehicle occupant risk 188.8.131.52 Detached elements and penetration The test item or detached elements, fragments or other major debris from the test item shall not penetrate the occupant compartment. The windscreen may be fractured but shall not be penetrated. 184.108.40.206 Vehicle behaviour The vehicle shall remain upright for not less than 12 m beyond the impact point with a roll angle less than 45 º and a pitch angle less than 45 º.
NOTE Yawing is accepted. 220.127.116.11 Acceleration severity index (ASI) The maximum ASI value in relation to each speed class, energy absorption category and occupant safety level shall not exceed the value specified in Table 5.
18.104.22.168 Theoretical Head Impact Velocity (THIV) The maximum THIV value in relation to each speed class, energy absorption category and occupant safety level shall not exceed the value specified in Table 5.
EN 12767:2007 (E) 13
Table 5 — Occupant safety Speeds Mandatory low speed impact test 35 km/h Speed class impact tests 50 km/h, 70 km/h and 100 km/h Maximum values Maximum values Energy absorption categories Occupant safety level ASI THIV km/h ASI THIV km/h HE 1 1,0 27 1,4 44 HE 2 1,0 27 1,2 33 HE 3 1,0 27 1,0 27 LE 1 1,0 27 1,4 44 LE 2 1,0 27 1,2 33 LE 3 1,0 27 1,0 27 NE 1 1,0 27 1,2 33 NE 2 1,0 27 1,0 27 NE 3 0,6 11 0,6 11 NE 4 No requirementNo requirement See 5.6
For a given combination of the energy absorption category and occupant safety level, the ASI and THIV values, rounded in accordance with 6.12, shall not exceed the maximum values specified in Table 5 for both the low impact speed and the high impact speed tests. 5.3 Additional requirements for cantilever and gantry sign supports Fifteen minutes after the impact the lowest point of the support structure or of any signs mounted on it may not be lower than 4,0 m. This time and height applies only to points located over the intended carriageways. Other height limits may be specified by national regulations. 5.4 Deemed to comply Standard metal tubes are often used as supports for traffic signs. Those particular types listed in Annex F shall be regarded as complying with the classes of this standard identified in the Annex.
5.5 Selection of items for test and product families 5.5.1 General A support structure shall be tested with a load corresponding to the maximum design load in respect of mass and, if critical, area or other dimensions. Specific requirements for certain product types are as follows: A lighting column shall be tested with the longest single arm bracket and luminaire of the greatest mass related to the bracket length for which the column is designed, in terms of a declared bending moment resistance at ground level, calculated or tested in accordance with EN 40-3-2 and EN 40-3-3. A successful test result shall also be valid for the same column with a shorter single arm bracket or a double arm bracket of the same general form and no greater overall height; with a luminaire mass resulting in an equal or less static bending moment as during testing; and with a post top luminaire and no bracket arm.
EN 12767:2007 (E)
14 A traffic sign support shall be tested with the maximum height selected by the manufacturer, and with the largest area of symmetrically mounted sign plate for which that height of support is designed, in terms of a declared bending moment resistance at ground level.
A successful test result shall also be valid for a smaller area of sign plate; for asymmetric mounting of the sign plate; and for the same support structure reduced in height but otherwise of exactly the same detailed construction and dimensions. Due to the risk of penetration of the windscreen of an impacting car, the untested reduced minimum height of the lower edge of the sign shall not be lower than 2,0 m. Lower installations may be used, but risk of windscreen penetration shall be evaluated. 5.5.2 Product families The largest size of any proposed product family shall be tested first, at the speed class selected and at low speed. NOTE Usually the largest size will have the greatest resistance to load, in terms of bending moment resistance at ground level. Depending on the results of these tests, further tests shall be carried out as follows: a) If the tested item complies with the NE category, no further tests are required. A product family may be declared for the tested item, and all smaller members of the family for which technical data has been provided, with the same speed class, energy absorption category, and occupant safety level as the tested item. Due to risk of penetration of the windscreen of an impacting car, the untested reduced minimum height shall not be lower than 2,0 m. Lower installations shall be subject to a specific test. b) If the tested item complies with the HE or LE category, further testing shall be carried out on the smallest member of the proposed produc