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BS EN 12966:2014+A1:2018 Road vertical signs. Variable message traffic signs, 2023
- undefined
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Product characteristics [Go to Page]
- 4.4.3.1 Luminance under external illumination
- 4.4.3.2 Luminance levels without external illumination
- 4.5.2.1 Temperature
- 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
- 4.5.3.1 Electrical supply and limits
- 4.5.3.2 Electrical safety
- 4.5.4.1 Electromagnetic emission
- 4.5.4.2 Electromagnetic immunity
- 5 Testing, assessment and sampling methods [Go to Page]
- 5.3.3.1 General
- 5.3.3.2 Test conditions
- 5.5.4.1 General
- 5.5.4.2 Test area for luminance ratio measurement
- 5.5.4.3 Measurement of luminance
- 5.5.4.4 Calculation of luminance ratio
- 6 Assessment and verification of constancy of performance (AVCP) [Go to Page]
- 6.3.2.1 General
- 6.3.2.2 Equipment
- 6.3.2.3 Raw materials and components
- 6.3.2.4 Traceability and marking
- 6.3.2.5 Controls during manufacturing process
- 6.3.2.6 Product testing and evaluation
- 6.3.2.7 Non-complying products
- 6.3.2.8 Corrective action
- 6.3.2.9 Handling, storage and packaging
- 7 Classification and designation
- 8 Marking, labelling and packaging
- 9 Product information
- Annex A (normative)Equivalent area [Go to Page]
- A.1 General
- A.2 Calculation of the luminance
- A.3 Calculation of non-matrix equivalent areas [Go to Page]
- A.3.1 Equivalent area for a line of elements.
- A.3.2 Equivalent area for a symbol fully populated with elements
- A.3.3 Equivalent area for a symbol partially populated with elements
- Annex B (normative)VMS performance declaration codes for marking [Go to Page]
- B.1 General
- B.2 Code for continuous retro-reflective VMS
- B.3 Code for externally illuminated continuous retro-reflective VMS
- B.4 Code for discontinuous VMS
- Annex L (informative)Terminology used in this European Standard
- Annex M (informative)Guidance on graphics for discontinuous light emitting signs [Go to Page]
- M.1 General
- M.2 Apparent luminance of lines and letter strokes [Go to Page]
- M.2.1 General
- M.2.2 Further technical explanation of Apparent luminance
- M.3 VMS with colour inversion
- M.4 VMS without colour inversion
- Annex N (informative)Guidance on dimensions , luminance, beam width, legibility and efficiency for discontinuous VMS [Go to Page]
- N.1 General
- N.2 Dimensions [Go to Page]
- N.2.1 General
- N.2.2 Text
- N.2.3 Circles
- N.2.4 Triangles
- N.3 Luminance and beam width classes
- N.4 Beam width and distances of legibility [Go to Page]
- N.4.1 Group of VMS, centred above the road
- N.4.2 Group of VMS, not centred above the road
- N.4.3 Curved road sections
- N.4.4 Limits of legibility due to vertical beam
- N.4.5 Calculation of recognition time [Go to Page]
- 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
- N.4.5.4 Conclusions after calculation of recognition time
- N.4.6 Luminance and luminance ratio
- N.4.7 Beam width
- N.5 Energy efficiency
- Annex O (informative)Specific design issues [Go to Page]
- 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
- O.9 Diagnostic
- Annex P (informative)Guidance for design of VMS messages [Go to Page]
- P.1 Design of VMS messages
- P.2 Specifying text dimensions
- Annex Q (informative)Technical documentation [Go to Page]
- Q.1 Sign enclosure
- Q.2 Electrical equipment
- Q.3 Mounting devices (if applicable)
- Q.4 Retro-reflective and non retro-reflective components
- Annex R (informative)Example of recommended summary of class combinations
- Annex ZA Annex ZA(informative)!Relationship of this European Standard with Regulation (EU) No.305/2011 [Go to Page]
