D4.8GENERAL SIGNING
"ROAD WORKS" SIGN TO DIAGRAM 7001
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7001
D4.8.1 All road works sites should have a "road works" sign to diagram 7001 exhibited on all approaches as the first sign seen by drivers. On motorways, and on all-purpose roads on which the national speed limit applies, the sign should be supplemented by a distance plate to diagram 572. The "road works" sign, supplemented where necessary by a plate to diagram 570 indicating the distance over which the hazard extends, may also be used at the hazard itself. These plates may also be used on restricted all-purpose roads, but are not necessary on roads with a permanent speed limit of 30mph or less.
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7001.1
D4.8.2 The "road works" sign to diagram 7001 may be accompanied by a supplementary plate to diagram 7001.1 indicating the nature of the road works. The size of each supplementary plate appropriate to the size of warning triangle is set out in Table A1.2 (Appendix 1). Supplementary plates to diagram 7001.1 which may be appropriate for road works are listed in Table 4.1 below.
| Grass cutting | Surveying |
| Tree cutting | Mobile road works |
| Hedge cutting | Road sweeping |
| Ditching | Gully emptying |
| Weed spraying | Gritting |
| Sign erection | Salting |
| Sign maintenance | Snow ploughing |
| Lighting maintenance | Blasting |
| Overhead works | On hard shoulder |
| On slip road | At level crossing |
D4.8.3 The "Blasting" plate variant to diagram 7001.1 erected below the "road works" sign to diagram 7001 is appropriate where explosives are being used in connection with works on or near the road, but where it is safe to allow traffic to keep running. In these circumstances the sign is used to warn drivers of the probability of hearing an explosion. Should it be necessary to stop all traffic during blasting, suitable arrangements must be made with the Highway Authority and the police.
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