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BS 8442:2022 – TC

$206.88

Tracked Changes. Miscellaneous road traffic signs and devices. Requirements and test methods

Published By Publication Date Number of Pages
BSI 2022 98
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PDF Pages PDF Title
1 compares BS 8442:2022
2 TRACKED CHANGES
Text example 1 — indicates added text (in green)
6 Foreword
Publishing information
Supersession
Product certification/inspection/testing
Information about this document
Presentational conventions
7 Contractual and legal considerations
Contractual and legal considerations
Compliance with a British Standard cannot confer immunity from legal obligations.
8 1 Scope
2 Normative references
Standards publications
9 Other publications
3 Terms and definitions
3.1 coefficient of retroreflection RA
3.2 conspicuity panel
3.3 entrance angle β
10 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)
11 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
4.14 Information to be obtained from the purchaser
5 Self-supporting rigid portable signs, other than barriers
5.1 General
12 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
6.1 General
13 6.2 Visual performance
6.3 Physical performance
7 Self-supporting flexible portable signs
7.1 General
7.2 Visual performance
7.3 Physical properties of substrate material
14 8 Manually operated portable “Stop/Go” and “Stop Works” signs
8.1 General
8.2 Visual performance
8.3 Physical performance
9 Portable school crossing patrol signs
9.1 General
9.2 Visual performance
15 10 Portable flat traffic delineators (FTDs)
10.1 General
10.2 Visual performance
10.3 Physical performance
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
11.1 General
11.2 Visual performance
11.3 Physical performance
16 12 Fixed, permanent pedestrian crossing and refuge beacons and twin amber flashing lights
12.1 Electrical requirements
12.2 Beacon globes
12.2.1 General
12.2.2 Visual performance
12.2.2.1 Chromaticity and luminance factor
17 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
18 12.2.2.3 Measurement of mean luminance and uniformity of luminance
19 12.2.2.4 Visibility of light source
12.3 Posts
12.3.1 General
12.3.2 Non-illuminated posts
12.3.2.1 Zebra crossing posts
12.3.2.2 Refuge beacon posts
20 12.3.3 Internally illuminated posts
12.3.3.1 Zebra crossing posts
12.3.3.2 Refuge beacon posts
12.3.4 Visual performance
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
21 12.3.5 Physical performance
12.4 Twin flashing amber light units
12.4.1 General
22 12.4.2 Visual performance of flashing amber light units
12.4.2.1 Chromaticity
Table 5 Chromaticity of amber light units
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
23 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
24 13 Retroreflective self-righting bollards (RSRBs)
13.1 General
13.1.1 Types
13.1.213.2 Design: common characteristics for all RSRB types
13.1.313.2.1 Height
13.1.413.2.2 Body
13.1.513.2.3 Conspicuity panels
25 13.213.3 Visual performance: common characteristics for all RSRB types
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
13.3.113.4.1 Adhesion to substrate test
26 13.3.213.4.2 Corrosion resistance
13.3.313.4.3 High impact resistance
27 13.413.5 Type B bollards: additional requirements
13.4.113.5.1 Mean luminance
13.4.213.5.2 Luminance contrast
13.4.313.5.3 Uniformity of luminance
28 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
29 13.513.6 Type C bollards: additional requirements
13.613.7 Type D bollards: additional requirements
14 Marking and information
14.1 Marking
14.2 Durability of marking
30 15 Information to be supplied by the manufacturer
31 Annex A (normative)
Retroreflective sheeting materials
A.1 General
A.2 Sampling and preparation of retroreflective test samples
A.2.1 Test samples
A.2.2 Preparation of samples
A.3 Visual performance
A.3.1 Daylight chromaticity and luminance factor
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
32 A.3.2 Coefficient of retroreflection
A.3.2.1 Glass bead sign face materials
A.3.2.2 Microprismatic sign face materials
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
33 A.3.3 Resistance to weathering of retroreflective sheeting materials
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
34 A.3.5 Accelerated artificial weathering
A.4 Physical performance
A.4.1 Resistance to impact
A.4.2 After-weathering test reports
35 Annex B (normative)
B.1 Temporary signs
36 B.2 Barrier units
37 Annex C (normative)
C.1 Calculation of the force on a sign face due to wind pressure
C.2 Mass and positioning of ballast
38 C.3 Overturning
39 C.4 Sliding
40 Annex D (informative)
Classes of wind speed
41 Annex E (normative)
E.1 Principle
E.2 Apparatus
42 E.3 Procedure
E.4 Test report
43 Annex F (informative)
F.1 Positioning of ballast
F.2 Overturning
45 F.3 Sliding
46 Annex G (normative)
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
47 Annex H (normative)
H.1 Principle
H.1.1H.2 Test sample
H.2H.3 Apparatus
H.3H.4 Conditioning
H.4H.5 Procedure
48 H.5H.6 Test report
49 Annex I (normative)
Test for fatigue resistance of flat traffic delineators (FTDs)
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
50 Annex J (normative)
J.1 PrincipleProcedure
J.1.1 Sample
J.2 Test sample
J.2J.3 Apparatus
J.3J.4 Procedure
J.4J.5 Test report
51 Annex K (normative)
K.1 Principle
K.2 Apparatus
K.3 Calibration
K.4 Procedure
52 K.5 Test report
53 Bibliography
Standards publications
Standards publications
Other publications
59 Foreword
61 1 Scope
2 Normative references
62 3 Terms and definitions
63 Figure 1 — Projected area
4 Information to be obtained from the purchaser
64 5 Self-supporting rigid portable signs, other than barriers
5.1 General
Table 1 — Classification of effective wind speeds Ve
5.2 Visual performance of sign face material
65 5.3 Physical performance of the sign face
5.4 Physical performance of the sign assembly
6 Portable barriers
6.1 General
6.2 Visual performance
6.3 Physical performance
7 Self-supporting flexible portable signs
7.1 General
66 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
8.1 General
8.2 Visual performance
8.3 Physical performance
67 9 Portable school crossing patrol signs
9.1 General
9.2 Visual performance
10 Portable flat traffic delineators (FTDs)
10.1 General
10.2 Visual performance
10.3 Physical performance
11 Fixed, permanent, manually operated flap signs
11.1 General
68 11.2 Visual performance
11.3 Physical performance
12 Fixed, permanent pedestrian crossing and refuge beacons and twin amber flashing lights
12.1 Electrical requirements
12.2 Beacon globes
69 Table 3 — Chromaticity coordinates and luminance factors of globes
70 Figure 2 — Luminance measurement
12.3 Posts
71 Table 4 — Luminance of posts
72 12.4 Twin flashing amber light units
73 Table 5 — Luminance requirements
74 13 Retroreflective self-righting bollards (RSRBs)
13.1 General
13.2 Design: common characteristics for all RSRB types
Table 6 — Projected area of the conspicuity panels
75 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
76 Figure 3 — Adhesion test
Table 8 — Surface protection
13.5 Type B bollards: additional requirements
77 Table 9 — Mean luminance, L, cd·m−2
Table 10 — Luminance contrast, K, lit traffic sign
Figure 4 — Location of the central sign centre
78 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
14.1 Marking
79 14.2 Durability of marking
15 Information to be supplied by the manufacturer
80 Annex A (normative)  Retroreflective sheeting materials
81 Table A.1 — Exposure period for accelerated natural weathering
82 Annex B (normative)  Ballast for self-supporting rigid and flexible portable signs, and classification and labelling of barrier units
Table B.1 — Ballast required for wind resistance of temporary signs
83 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
Table C.1 — Values of Cw
84 Table C.2 — Values of S
85 Figure C.1 — Overturning moment diagram
86 Annex D (informative)  Classes of wind speed
Annex E (normative)  Test for overturning and sliding performance of self-supporting rigid portable signs
87 Figure E.1 — Test apparatus for stability and sliding performance
88 Annex F (informative)  Calculation of minimum recommended ballast required to resist overturning and sliding of barrier units
Figure F.1 — Resistance to overturning diagram
90 Annex G (normative)  Test for impact resistance of flat traffic delineators (FTDs) at low temperature
91 Annex H (normative)  Test for bending resistance of flat traffic delineators (FTDs)
92 Annex I (normative)  Test for fatigue resistance of flat traffic delineators (FTDs)
93 Annex J (normative)  Measurement of the luminance of internally illuminated posts
94 Annex K (normative)  Determination of mean luminance and uniformity of luminance
96 Bibliography
BS 8442:2022 - TC
$206.88