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BS 8442:2022

BS 8442:2022

$167.15

Miscellaneous road traffic signs and devices – Requirements and test methods

Published By Publication Date Number of Pages
BSI 2022 44
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PDF Catalog

PDF Pages PDF Title
5 Foreword
7 1 Scope
2 Normative references
8 3 Terms and definitions
9 Figure 1 — Projected area
4 Information to be obtained from the purchaser
10 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
11 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
12 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
13 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
14 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
15 Table 3 — Chromaticity coordinates and luminance factors of globes
16 Figure 2 — Luminance measurement
12.3 Posts
17 Table 4 — Luminance of posts
18 12.4 Twin flashing amber light units
19 Table 5 — Luminance requirements
20 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
21 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
22 Figure 3 — Adhesion test
Table 8 — Surface protection
13.5 Type B bollards: additional requirements
23 Table 9 — Mean luminance, L, cd·m−2
Table 10 — Luminance contrast, K, lit traffic sign
Figure 4 — Location of the central sign centre
24 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
25 14.2 Durability of marking
15 Information to be supplied by the manufacturer
26 Annex A (normative)  Retroreflective sheeting materials
27 Table A.1 — Exposure period for accelerated natural weathering
28 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
29 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
30 Table C.2 — Values of S
31 Figure C.1 — Overturning moment diagram
32 Annex D (informative)  Classes of wind speed
Annex E (normative)  Test for overturning and sliding performance of self-supporting rigid portable signs
33 Figure E.1 — Test apparatus for stability and sliding performance
34 Annex F (informative)  Calculation of minimum recommended ballast required to resist overturning and sliding of barrier units
Figure F.1 — Resistance to overturning diagram
36 Annex G (normative)  Test for impact resistance of flat traffic delineators (FTDs) at low temperature
37 Annex H (normative)  Test for bending resistance of flat traffic delineators (FTDs)
38 Annex I (normative)  Test for fatigue resistance of flat traffic delineators (FTDs)
39 Annex J (normative)  Measurement of the luminance of internally illuminated posts
40 Annex K (normative)  Determination of mean luminance and uniformity of luminance
42 Bibliography

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BS 8442:2022
$167.15