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BS EN 12966:2014+A1:2018:2021 Edition

BS EN 12966:2014+A1:2018:2021 Edition

$245.25

Road vertical signs. Variable message traffic signs

Published By Publication Date Number of Pages
BSI 2021 130
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This European Standard provides specifications for two types of variable message signs (VMS); i.e. continuous (see 3.4) and discontinuous (see 3.7). This European Standard covers mobile, temporary and permanently installed VMS used in circulation areas, on public and private land, including tunnels for the information, guidance, warning and/or direction of traffic. Test modules are used to demonstrate compliance with the requirements. This European Standard specifies visual and physical characteristics of VMS as well as their durability aspects. It also provides relevant requirements and corresponding test methods, assessment and verification of constancy of performance (AVCP) and marking. NOTE Provisions for the evaluation of conformity with regards to type testing are further specified in 6.2; provisions with regards to factory production control (FPC) are further specified in 6.3. This European Standard does not cover a) sign gantries, cantilevers, posts (supports) and foundations, b) signal heads, c) sizes and shapes of VMS messages, d) control units and monitoring units unless inside the VMS, e) control of sign luminance.

PDF Catalog

PDF Pages PDF Title
2 undefined
14 1 Scope
2 Normative references
15 3 Terms and definitions
19 4 Product characteristics
22 4.4.3.1 Luminance under external illumination
23 4.4.3.2 Luminance levels without external illumination
29 4.5.2.1 Temperature
30 4.5.2.2 Resistance of electrical / electronic components to the effects of pollution
4.5.2.3 Resistance to corrosion
4.5.2.4 Ingress protection against water and dust (IP) provided by enclosures
4.5.2.5 Mechanical performance requirements
31 4.5.3.1 Electrical supply and limits
32 4.5.3.2 Electrical safety
4.5.4.1 Electromagnetic emission
4.5.4.2 Electromagnetic immunity
33 5 Testing, assessment and sampling methods
35 5.3.3.1 General
5.3.3.2 Test conditions
46 5.5.4.1 General
5.5.4.2 Test area for luminance ratio measurement
47 5.5.4.3 Measurement of luminance
5.5.4.4 Calculation of luminance ratio
50 6 Assessment and verification of constancy of performance (AVCP)
56 6.3.2.1 General
57 6.3.2.2 Equipment
6.3.2.3 Raw materials and components
58 6.3.2.4 Traceability and marking
6.3.2.5 Controls during manufacturing process
6.3.2.6 Product testing and evaluation
61 6.3.2.7 Non-complying products
6.3.2.8 Corrective action
6.3.2.9 Handling, storage and packaging
63 7 Classification and designation
65 8 Marking, labelling and packaging
9 Product information
67 Annex A (normative)Equivalent area
A.1 General
A.2 Calculation of the luminance
70 A.3 Calculation of non-matrix equivalent areas
A.3.1 Equivalent area for a line of elements.
71 A.3.2 Equivalent area for a symbol fully populated with elements
A.3.3 Equivalent area for a symbol partially populated with elements
73 Annex B (normative)VMS performance declaration codes for marking
B.1 General
B.2 Code for continuous retro-reflective VMS
B.3 Code for externally illuminated continuous retro-reflective VMS
74 B.4 Code for discontinuous VMS
75 Annex L (informative)Terminology used in this European Standard
77 Annex M (informative)Guidance on graphics for discontinuous light emitting signs
M.1 General
M.2 Apparent luminance of lines and letter strokes
M.2.1 General
78 M.2.2 Further technical explanation of Apparent luminance
79 M.3 VMS with colour inversion
85 M.4 VMS without colour inversion
87 Annex N (informative)Guidance on dimensions , luminance, beam width, legibility and efficiency for discontinuous VMS
N.1 General
N.2 Dimensions
N.2.1 General
88 N.2.2 Text
N.2.3 Circles
89 N.2.4 Triangles
N.3 Luminance and beam width classes
94 N.4 Beam width and distances of legibility
N.4.1 Group of VMS, centred above the road
95 N.4.2 Group of VMS, not centred above the road
96 N.4.3 Curved road sections
97 N.4.4 Limits of legibility due to vertical beam
99 N.4.5 Calculation of recognition time
N.4.5.1 General
N.4.5.2 Distances in metres per second at various speeds
N.4.5.3 Example of calculation of the recognition time
102 N.4.5.4 Conclusions after calculation of recognition time
N.4.6 Luminance and luminance ratio
103 N.4.7 Beam width
N.5 Energy efficiency
104 Annex O (informative)Specific design issues
O.1 Finish
O.2 Front panels
O.3 Front screens
O.4 Appearance
O.5 Electrolytic compatibility
O.6 Protection against thermal overload
O.7 Physical security against unauthorized access
O.8 Interfaces between VMS, control, and higher order equipment
105 O.9 Diagnostic
106 Annex P (informative)Guidance for design of VMS messages
P.1 Design of VMS messages
107 P.2 Specifying text dimensions
110 Annex Q (informative)Technical documentation
Q.1 Sign enclosure
Q.2 Electrical equipment
Q.3 Mounting devices (if applicable)
Q.4 Retro-reflective and non retro-reflective components
112 Annex R (informative)Example of recommended summary of class combinations
120 Annex ZA Annex ZA(informative)!Relationship of this European Standard with Regulation (EU) No.305/2011

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