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BS 8442:2022 - TC Tracked Changes. Miscellaneous road traffic signs and devices. Requirements and test methods, 2022
- Foreword [Go to Page]
- Publishing information
- Supersession [Go to Page]
- Product certification/inspection/testing
- Information about this document
- Presentational conventions
- Contractual and legal considerations
- Contractual and legal considerations [Go to Page]
- Compliance with a British Standard cannot confer immunity from legal obligations.
- 1 Scope
- 2 Normative references [Go to Page]
- Standards publications
- Other publications
- 3 Terms and definitions [Go to Page]
- 3.1 coefficient of retroreflection RA
- 3.2 conspicuity panel
- 3.3 entrance angle β
- 3.4 fluorescent
- 3.5 ground line
- 3.6 luminance
- 3.7 luminance factor β
- 3.8 observation angleα
- 3.9 projected area
- 3.10 retroreflection
- 3.11 retroreflective self-righting bollard (RSRB)
- 3.12 road stud
- 3.133.12 RSRB body
- 3.143.13 substrate
- 3.153.14 traffic sign
- 4 Information and requirements to be agreed and documented [Go to Page]
- 4.14 Information to be obtained from the purchaser
- 5 Self-supporting rigid portable signs, other than barriers [Go to Page]
- 5.1 General
- 5.2 Visual performance of sign face material
- 5.3 Physical performance of the sign face
- 5.4 Physical performance of the sign assembly
- 6 Portable barriers [Go to Page]
- 6.1 General
- 6.2 Visual performance
- 6.3 Physical performance
- 7 Self-supporting flexible portable signs [Go to Page]
- 7.1 General
- 7.2 Visual performance
- 7.3 Physical properties of substrate material
- 8 Manually operated portable “Stop/Go” and “Stop Works” signs [Go to Page]
- 8.1 General
- 8.2 Visual performance
- 8.3 Physical performance
- 9 Portable school crossing patrol signs [Go to Page]
- 9.1 General
- 9.2 Visual performance
- 10 Portable flat traffic delineators (FTDs) [Go to Page]
- 10.1 General
- 10.2 Visual performance
- 10.3 Physical performance [Go to Page]
- 10.3.1 Impact resistance at low temperature
- 10.3.2 Resistance to bending
- 10.3.3 Fatigue resistance
- 11 Fixed, permanent, manually operated flap signs [Go to Page]
- 11.1 General
- 11.2 Visual performance
- 11.3 Physical performance
- 12 Fixed, permanent pedestrian crossing and refuge beacons and twin amber flashing lights [Go to Page]
- 12.1 Electrical requirements
- 12.2 Beacon globes [Go to Page]
- 12.2.1 General
- 12.2.2 Visual performance [Go to Page]
- 12.2.2.1 Chromaticity and luminance factor
- 12.2.2.1.2 Measurement of globe chromaticity and luminance factor
- 12.2.2.2 Mean luminance and uniformity of luminance
- 12.2.2.2 Luminance levels
- 12.2.2.3 Measurement of mean luminance and uniformity of luminance
- 12.2.2.4 Visibility of light source
- 12.3 Posts [Go to Page]
- 12.3.1 General
- 12.3.2 Non-illuminated posts [Go to Page]
- 12.3.2.1 Zebra crossing posts
- 12.3.2.2 Refuge beacon posts
- 12.3.3 Internally illuminated posts [Go to Page]
- 12.3.3.1 Zebra crossing posts
- 12.3.3.2 Refuge beacon posts
- 12.3.4 Visual performance [Go to Page]
- 12.3.4.1 Non-illuminated posts
- 12.3.4.2 Internally illuminated posts
- 12.3.4.2.2 Mean luminance and uniformity of luminance of internally illuminated posts
- 12.3.5 Physical performance
- 12.4 Twin flashing amber light units [Go to Page]
- 12.4.1 General
- 12.4.2 Visual performance of flashing amber light units [Go to Page]
- 12.4.2.1 Chromaticity
- Table 5 Chromaticity of amber light units [Go to Page]
- 12.4.2.2 Measurement of chromaticity
- 12.4.2.3 Luminous intensity and distribution
- 12.4.2.4 Method for the determination of the luminous intensity and distribution [Go to Page]
- 12.4.2.2 Measurement of chromaticity
- 12.4.2.3 Luminance
- 12.4.2.4 Measurement of luminance
- 12.4.2.5 Beam width
- 12.4.2.6 Measurement of beam width
- 12.4.312.4.2.7 Physical performance of flashing amber light units
- 12.5 Non-retroreflective road studs [Go to Page]
- 13 Retroreflective self-righting bollards (RSRBs) [Go to Page]
- 13.1 General [Go to Page]
- 13.1.1 Types
- 13.1.213.2 Design: common characteristics for all RSRB types [Go to Page]
- 13.1.313.2.1 Height
- 13.1.413.2.2 Body
- 13.1.513.2.3 Conspicuity panels
- 13.213.3 Visual performance: common characteristics for all RSRB types [Go to Page]
- 13.2.113.3.1 Chromaticity
- 13.2.213.3.2 Photometric performance of conspicuity panels, traffic signs and plain white circles incorporated in all RSRB
- 13.313.4 Physical performance: common characteristics for all RSRB types [Go to Page]
- 13.3.113.4.1 Adhesion to substrate test
- 13.3.213.4.2 Corrosion resistance
- 13.3.313.4.3 High impact resistance
- 13.413.5 Type B bollards: additional requirements [Go to Page]
- 13.4.113.5.1 Mean luminance
- 13.4.213.5.2 Luminance contrast
- 13.4.313.5.3 Uniformity of luminance
- 13.4.413.5.4 Colour rendering of light sources
- 13.4.513.5.5 Protection from foreign objects and water
- 13.4.613.5.6 Electrical
- 13.513.6 Type C bollards: additional requirements
- 13.613.7 Type D bollards: additional requirements
- 14 Marking and information [Go to Page]
- 14.1 Marking
- 14.2 Durability of marking
- 15 Information to be supplied by the manufacturer
- Annex A (normative)
- Retroreflective sheeting materials [Go to Page]
- A.1 General
- A.2 Sampling and preparation of retroreflective test samples [Go to Page]
- A.2.1 Test samples
- A.2.2 Preparation of samples
- A.3 Visual performance [Go to Page]
- A.3.1 Daylight chromaticity and luminance factor [Go to Page]
- A.3.1.1 Non-retroreflective sign face material
- A.3.1.2 Retroreflective sign face materials
- A.3.1.2.1 Glass bead
- A.3.1.2.2 Microprismatic
- A.3.2 Coefficient of retroreflection
- A.3.2.1 Glass bead sign face materials
- A.3.2.2 Microprismatic sign face materials [Go to Page]
- Table A.1 Minimum coefficient of retroreflection (Class R3B-UK) (unit cd lx−1 m−2)
- A.3.1.2 Retroreflective sign face materials colour requirements
- A.3.2 Coefficient of retroreflection sign face materials
- A.3.3 Resistance to weathering of retroreflective sheeting materials [Go to Page]
- A.3.3.1.1 Glass beaded sheetings
- A.3.3.1.2 Microprismatic sheetings
- A.3.3.1.3 All sheetings
- A.3.4 Accelerated natural weathering
- A.3.5 Accelerated artificial weathering
- A.4 Physical performance [Go to Page]
- A.4.1 Resistance to impact
- A.4.2 After-weathering test reports
- Annex B (normative) [Go to Page]
- B.1 Temporary signs
- B.2 Barrier units
- Annex C (normative) [Go to Page]
- C.1 Calculation of the force on a sign face due to wind pressure
- C.2 Mass and positioning of ballast
- C.3 Overturning
- C.4 Sliding
- Annex D (informative)
- Classes of wind speed
- Annex E (normative) [Go to Page]
- E.1 Principle
- E.2 Apparatus
- E.3 Procedure
- E.4 Test report
- Annex F (informative) [Go to Page]
- F.1 Positioning of ballast
- F.2 Overturning
- F.3 Sliding
- Annex G (normative) [Go to Page]
- G.1 Principle
- G.1.1G.2 Test sample
- G.2G.3 Apparatus
- G.3G.4 Conditioning
- G.4G.5 Procedure
- G.5G.6 Test report
- Annex H (normative) [Go to Page]
- H.1 Principle
- H.1.1H.2 Test sample
- H.2H.3 Apparatus
- H.3H.4 Conditioning
- H.4H.5 Procedure
- H.5H.6 Test report
- Annex I (normative)
- Test for fatigue resistance of flat traffic delineators (FTDs) [Go to Page]
- I.1 Principle
- I.1.1I.2 Test sample
- I.2I.3 Apparatus
- I.3I.4 Conditioning
- I.4I.5 Procedure
- I.5I.6 Test report
- Annex J (normative) [Go to Page]
- J.1 PrincipleProcedure
- J.1.1 Sample
- J.2 Test sample
- J.2J.3 Apparatus
- J.3J.4 Procedure
- J.4J.5 Test report
- Annex K (normative) [Go to Page]
- K.1 Principle
- K.2 Apparatus
- K.3 Calibration
- K.4 Procedure
- K.5 Test report
- Bibliography [Go to Page]
- Standards publications
- Standards publications
- Other publications
- Tracked_Changes_Cover_Markup_new.pdf [Go to Page]
- compares BS 8442:2022 [Go to Page]
- TRACKED CHANGES
- Text example 1 — indicates added text (in green)
- 30439741-WEB_New.pdf [Go to Page]
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions [Go to Page]
- Figure 1 — Projected area
- 4 Information to be obtained from the purchaser
- 5 Self-supporting rigid portable signs, other than barriers [Go to Page]
- 5.1 General
- Table 1 — Classification of effective wind speeds Ve
- 5.2 Visual performance of sign face material
- 5.3 Physical performance of the sign face
- 5.4 Physical performance of the sign assembly
- 6 Portable barriers [Go to Page]
- 6.1 General
- 6.2 Visual performance
- 6.3 Physical performance
- 7 Self-supporting flexible portable signs [Go to Page]
- 7.1 General
- 7.2 Visual performance
- 7.3 Physical properties of substrate material
- Table 2 — Physical properties of substrate material
- 8 Manually operated portable “Stop/Go” and “Stop Works” signs [Go to Page]
- 8.1 General
- 8.2 Visual performance
- 8.3 Physical performance
- 9 Portable school crossing patrol signs [Go to Page]
- 9.1 General
- 9.2 Visual performance
- 10 Portable flat traffic delineators (FTDs) [Go to Page]
- 10.1 General
- 10.2 Visual performance
- 10.3 Physical performance
- 11 Fixed, permanent, manually operated flap signs [Go to Page]
- 11.1 General
- 11.2 Visual performance
- 11.3 Physical performance
- 12 Fixed, permanent pedestrian crossing and refuge beacons and twin amber flashing lights [Go to Page]
- 12.1 Electrical requirements
- 12.2 Beacon globes
- Table 3 — Chromaticity coordinates and luminance factors of globes
- Figure 2 — Luminance measurement
- 12.3 Posts
- Table 4 — Luminance of posts
- 12.4 Twin flashing amber light units
- Table 5 — Luminance requirements
- 13 Retroreflective self-righting bollards (RSRBs) [Go to Page]
- 13.1 General
- 13.2 Design: common characteristics for all RSRB types
- Table 6 — Projected area of the conspicuity panels
- 13.3 Visual performance: common characteristics for all RSRB types
- Table 7 — Daytime chromaticity and luminance factor
- 13.4 Physical performance: common characteristics for all RSRB types
- Figure 3 — Adhesion test
- Table 8 — Surface protection
- 13.5 Type B bollards: additional requirements
- Table 9 — Mean luminance, L, cd·m−2
- Table 10 — Luminance contrast, K, lit traffic sign
- Figure 4 — Location of the central sign centre
- Table 11 — Protection from foreign objects and water
- 13.6 Type C bollards: additional requirements
- 13.7 Type D bollards: additional requirements
- 14 Marking and information [Go to Page]
- 14.1 Marking
- 14.2 Durability of marking
- 15 Information to be supplied by the manufacturer
- Annex A (normative) Retroreflective sheeting materials [Go to Page]
- Table A.1 — Exposure period for accelerated natural weathering
- Annex B (normative) Ballast for self-supporting rigid and flexible portable signs, and classification and labelling of barrier units [Go to Page]
- Table B.1 — Ballast required for wind resistance of temporary signs
- Table B.2 — Ballast required for wind resistance of barrier assembly
- Annex C (normative) Calculation of minimum recommended ballast required to resist overturning and sliding of self-supporting rigid portable signs [Go to Page]
- Table C.1 — Values of Cw
- Table C.2 — Values of S
- Figure C.1 — Overturning moment diagram
- Annex D (informative) Classes of wind speed
- Annex E (normative) Test for overturning and sliding performance of self-supporting rigid portable signs [Go to Page]
- Figure E.1 — Test apparatus for stability and sliding performance
- Annex F (informative) Calculation of minimum recommended ballast required to resist overturning and sliding of barrier units [Go to Page]
- Figure F.1 — Resistance to overturning diagram
- Annex G (normative) Test for impact resistance of flat traffic delineators (FTDs) at low temperature
- Annex H (normative) Test for bending resistance of flat traffic delineators (FTDs)
- Annex I (normative) Test for fatigue resistance of flat traffic delineators (FTDs)
- Annex J (normative) Measurement of the luminance of internally illuminated posts
- Annex K (normative) Determination of mean luminance and uniformity of luminance
- Bibliography [Go to Page]