BS 8442-2015 Miscellaneous road traffic signs and devices Requirements and test methods《各种道路交通标志和装置 试验方法和要求》.pdf

1、BSI Standards PublicationBS 8442:2015Miscellaneous road trafficsigns and devices Requirements and testmethodsPublishing and copyright informationThe BSI copyright notice displayed in this document indicates when the documentwas last issued. The British Standards Institution 2015Published by BSI Stan

2、dards Limited 2015ISBN 978 0 580 77316 7ICS 93.080.30The following BSI references relate to the work on this document:Committee reference B/509/3Draft for comment DC15/30300479Publication historyFirst published October 2006Second (present) edition, November 2015Amendments issued since publicationDat

3、e Text affectedBS 8442:2015 BRITISH STANDARDContentsForeword iii1 Scope 12 Normative references 13 Terms and definitions 24 Information and requirements to be agreed and documented 45 Self-supporting rigid portable signs, other than barriers 46 Portable barriers 57 Self-supporting flexible portable

4、signs 68 Manually operated portable “Stop/Go” and “Stop Works” signs 69 Portable school crossing patrol signs 710 Portable flat traffic delineators (FTDs) 711 Fixed, permanent, manually operated flap signs 812 Fixed, permanent pedestrian crossing and refuge beacons and twin amberflashing lights 813

5、Retroreflective self-righting bollards (RSRBs) 1414 Marking and information 1915 Information to be supplied by the manufacturer 20AnnexesAnnex A (normative) Retroreflective sheeting materials 21Annex B (normative) Ballast for self-supporting rigid and flexible portable signs,and classification and l

6、abelling of barrier units 23Annex C (normative) Calculation of minimum recommended ballast required toresist overturning and sliding of self-supporting rigid portable signs 25Annex D (informative) Classes of wind speed 27Annex E (normative) Test for overturning and sliding performance ofself-support

7、ing rigid portable signs 27Annex F (informative) Calculation of minimum recommended ballast required toresist overturning and sliding of barrier units 29Annex G (normative) Test for impact resistance of flat traffic delineators (FTDs)at low temperature 30Annex H (normative) Test for bending resistan

8、ce of flat traffic delineators(FTDs) 31Annex I (normative) Test for fatigue resistance of flat traffic delineators(FTDs) 32Annex J (normative) Measurement of the luminance of internally illuminatedposts 33Annex K (normative) Determination of mean luminance and uniformity ofluminance 34Bibliography 3

9、5List of figuresFigure 1 Projected area 3Figure 2 Luminance measurement 10Figure 3 Adhesion test 16Figure 4 Location of the central sign centre 18Figure C.1 Overturning moment diagram 26Figure E.1 Test apparatus for stability and sliding performance 28Figure F.1 Resistance to overturning diagram 29L

10、ist of tablesTable 1 Classification of effective wind speeds Ve4BRITISH STANDARD BS 8442:2015 The British Standards Institution 2015 iTable 2 Physical properties of substrate material 6Table 3 Chromaticity coordinates and luminance factors of globes 9Table 4 Luminance of posts 12Table 5 Chromaticity

11、 of amber light units 13Table 6 Projected area of the conspicuity panels 15Table 7 Daytime chromaticity and luminance factor 16Table 8 Surface protection 17Table 9 Mean luminance, L, cdm217Table 10 Luminance contrast, K, lit traffic sign 18Table 11 Protection from foreign objects and water 18Table A

12、.1 Minimum coefficient of retroreflection (Class R3B-UK) (unitcdlx1m2) 22Table A.2 Exposure period for accelerated natural weathering 23Table B.1 Ballast required for wind resistance of temporary signs 24Table B.2 Ballast required for wind resistance of barrier assembly 24Table C.1 Values of Cw25Tab

13、le C.2 Values of S25Summary of pagesThis document comprises a front cover, an inside front cover, pages i to iv,pages 1 to 36, an inside back cover and a back cover.BRITISH STANDARDBS 8442:2015ii The British Standards Institution 2015ForewordPublishing informationThis British Standard is published b

14、y BSI Standards Limited, under licence fromThe British Standards Institution, and came into effect on 30 November 2015. Itwas prepared by Subcommittee B/509/3, Construction of road traffic signs, underthe authority of Technical Committee B/509, Road equipment. A list oforganizations represented on t

15、hese committees can be obtained on request totheir secretary.SupersessionThis British Standard supersedes BS 8442:2006, which is withdrawn.Product certification/inspection/testingUsers of this British Standard are advised to consider the desirability ofthird-party certification/inspection/testing of

16、 product conformity with this BritishStandard. Appropriate conformity attestation arrangements are described inBS EN ISO/IEC 17025. Users seeking assistance in identifying appropriateconformity assessment bodies or schemes may ask BSI to forward their enquiriesto the relevant association.Presentatio

17、nal conventionsThe provisions of this standard are presented in roman (i.e. upright) type. Itsrequirements are expressed in sentences in which the principal auxiliary verb is“shall”.Commentary, explanation and general informative material is presented insmaller italic type, and does not constitute a

18、 normative element.Requirements in this standard are drafted in accordance with Rules for thestructure and drafting of UK standards, subclause J.1.1, which states,“Requirements should be expressed using wording such as: When tested asdescribed in Annex A, the product shall .”. This means that only t

19、hose productsthat are capable of passing the specified test will be deemed to conform to thisstandard.Contractual and legal considerationsThis publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application.Compliance with a Britis

20、h Standard cannot confer immunity from legalobligations.Particular attention is drawn to the following specific regulations:a) The Traffic Signs Regulations and General Directions (TSRGD) 1b) The School Crossing Patrol Sign (Scotland) Regulations 2002 2c) The School Crossing Patrol Sign (England and

21、 Wales) Regulations 2006 3d) The Low Voltage Directive (LVD) 2006/95/EC 4e) The Zebra, Pelican and Puffin Pedestrian Crossings Regulations and GeneralDirections 1997 5BRITISH STANDARD BS 8442:2015 The British Standards Institution 2015 iiiBRITISH STANDARDBS 8442:2015This page deliberately left blank

22、iv The British Standards Institution 20151 ScopeThis British Standard specifies requirements and tests (see Note) for rigid andflexible portable signs, barriers, self-supporting portable signs, “Stop/Go” and“Stop/Works” signs, school crossing patrol signs, flat traffic delineators, flapsigns, pedest

23、rian crossing and refuge beacons, internally illuminated posts, twinamber flashing light units, non-retroreflecting road studs and retroreflectiveself-righting bollards.Non-retroreflecting road studs incorporating an active light source are notcovered by this standard.NOTE The tests given in this st

24、andard are suitable for both initial type testing andproduction testing.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in thisdocument and are indispensable for its application. For dated references, onlythe edition cited applies. For undated reference

25、s, the latest edition of thereferenced document (including any amendments) applies.BS 3424-5:1982, Testing coated fabrics Part 5: Methods 7A, 7B and 7C Methods for determination of tear strengthBS 7263-1, Precast concrete flags, kerbs, channels, edgings and quadrants Precast, unreinforced concrete p

26、aving flags and complementary fittings Part 1:Requirements and test methodsBS EN 40-2:2004, Lighting columns Part 2: General requirements anddimensionsBS EN 485-1, Aluminium and aluminium alloys Sheet, strip and plate Part 1:Technical conditions for inspection and deliveryBS EN 12332-1, Rubber- or p

27、lastics-coated fabrics Determination of burstingstrength Part 1: Steel ball methodBS EN 12665, Light and lighting Basic terms and criteria for specifying lightingrequirementsBS EN 12767:2007, Passive safety of support structures for road equipment Requirements, classification and test methodsBS EN 1

28、2899-1:2007, Fixed, vertical road traffic signs Part 1: Fixed signsBS EN 13032-1, Light and lighting Measurement and presentation ofphotometric data of lamps and luminaires Part 1: Measurement and fileformatBS EN 50293, Road traffic signal systems Electromagnetic compatibilityBS EN 55014-1, Electrom

29、agnetic compatibility Requirements for householdappliances, electric tools and similar apparatus Part 1: EmissionBS EN 60529, Degrees of protection provided by enclosures (IP code)BS EN 60598-1:2000, Luminaires Part 1: General requirements and testsBS EN ISO 877-1:2010, Plastics Methods of exposure

30、to solar radiation Part 1:General GuidanceBS EN ISO 877-2:2010, Plastics Methods of exposure to solar radiation Part 2:Direct weathering and exposure behind window glassBS EN ISO 1421, Rubber- or plastics-coated fabrics Determination of tensilestrength and elongation at breakBRITISH STANDARD BS 8442

31、:2015 The British Standards Institution 2015 1BS EN ISO 1461, Hot dip galvanized coatings on fabricated iron and steel articles Specifications and test methodsBS EN ISO 2286-2:1998, Rubber- or plastics-coated fabrics Determination of rollcharacteristics Part 2: Methods for determination of total mas

32、s per unit area,mass per unit area of coating and mass per unit area of substrateBS EN 10240, Internal and/or external protective coatings for steel tubes Specification for hot dip galvanized coatings applied in automatic plantsCIE1)15, ColorimetryCIE 17.4, International lighting vocabularyCIE 54.2,

33、 Retroreflection: definition and measurement3 Terms and definitionsFor the purposes of this British Standard, the terms and definitions given inCIE 17.4 and the following apply.3.1 coefficient of retroreflectionRAluminous intensity of a surface in the direction of observation, divided by theproduct

34、of the illuminance on a plane perpendicular to the direction of incidentlight and the area of the surfaceNOTE RAis expressed in candelas per lux per square metre (cdlx1m2).3.2 conspicuity panelpart of the body of a self-righting bollard that enhances its conspicuity in alllighting conditions3.3 entr

35、ance angleangle between the illumination axis and the retroreflector axisNOTE In signing applications the entrance angle is less than 90.3.4 fluorescentmaterials that exhibit fluorescence which is an attribute of daytime appearancebased on absorption of light at shorter wavelengths and emission at l

36、ongerwavelengths3.5 ground linelevel of surface on which a device is mounted3.6 luminancephysical measure of optical stimulus that produces the sensation of brightnessmeasured by the luminous intensity of light emitted or reflected in a givendirection from a surface element divided by the area of th

37、e element projectedin the same directionNOTE The unit of measurement is candelas per square metre (cdm2).1)All CIE documents are available from the International Commission on Illumination,CIE Central Bureau, Kegelstrasse 27, A-1030 Vienna. AUSTRIA +43 (01) 714 31 87/0 orwww.cie.co.atBRITISH STANDAR

38、DBS 8442:20152 The British Standards Institution 20153.7 luminance factorratio of the luminance of a surface to that of a perfect diffuse reflector,identically illuminated and viewed3.8 observation angleangle between the illumination axis and the observation axis3.9 projected areaarea of a three-dim

39、ensional object when projected on to a plane surface at rightangles to the direction of viewingNOTE See Figure 1 for an example of projected area.Figure 1 Projected areaKey1 Projected area3.10 retroreflectionreflection in which the reflected rays are preferentially returned in directionsclose to the

40、 opposite of the direction of the incident rays, this property beingmaintained over wide variations in the direction of the incident rays3.11 retroreflective self-righting bollard (RSRB)retroreflective self-righting device normally mounted on a refuge or a trafficislandNOTE An RSRB may contain a pre

41、scribed traffic sign or a plain white area. Itincorporates conspicuity panels made from fluorescent yellow to enhance bothdaytime and night-time visibility. It is level 4 “non-harmful” (see BS EN 12767:2007,Table 5) when tested for passive safety, and the depth of the body is limited so thatwhen def

42、lected under impact a vehicle can pass over it.3.12 road studdevice that is bonded to or anchored within the road surface in order to warn,guide or inform road users3.13 RSRB bodypart of an RSRB above the lower edge of the front conspicuity panel3.14 substratematerial that supports the sign face3.15

43、 traffic signany object or device, whether fixed or portable, for conveying, to traffic onroads or any specified class of traffic, warnings, information requirements,restrictions or prohibitions of any descriptionBRITISH STANDARD BS 8442:2015 The British Standards Institution 2015 34 Information and

44、 requirements to be agreed anddocumented4.1 Information to be obtained from the purchaserThe following information shall be obtained from the purchaser when orderingto ensure products supplied are suitable for intended use:a) the properties of the microprismatic material (see A.3.2.2);b) the level o

45、f protection against electric shock (see 12.1);c) the degree of ingress protection required if it is higher than that specifiedin 12.2.1, 12.3.1 and 12.4.1;d) the length of a zebra crossing or refuge beacon post above ground(see 12.3.2.1 and 12.3.2.2);NOTE This should be within the limits prescribed

46、 by the TSRGD 1.e) the method of securing a flashing amber light unit to a post (see 12.4.1);andf) the substrate to which sign face material is to be applied if otherthan 3 mm aluminium sheet (see A.2.2).5 Self-supporting rigid portable signs, other thanbarriers5.1 GeneralThe sign shall be construct

47、ed in such a way that, when erected, the lowest edgeof the sign, or of any supplementary plate, shall be not less than 300 mm abovethe supporting surface. The sign shall be so constructed that, when erected, thesign face is either normal to the supporting surface or inclined so that the topof the si

48、gn leans away from the viewer, at an angle not greater than 22.5 fromthe normal to the supporting surface when observed from the front.NOTE 1 Retroreflective materials are designed to provide more reflected light todrivers when mounted vertically.The sign assembly shall be designed to enable ballast

49、ing so that the sign resiststhe wind forces in its intended location. The sign assembly manufacturer shallindicate the minimum recommended ballast required, and its positioning on thesign assemblys supports, for the sign assembly to resist the wind speed class(es)for which it is designed see Table 1, 14.1e) and Annex B.The minimum recommended ballast required for the sign assembly to resist ClassA, Class B and Class C wind speeds shall be