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674 Entrance to a 20 mph speed limit zone
The place name may be omitted or varied to a road safety slogan (advertising material or political slogans must not be used). The symbol or pictogram may be varied or omitted. The place name may be in any style of lettering. Any contrasting colours except red may be used for the place name and the background of that part of the sign. The lower panel may be omitted
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675 End of a 20 mph speed limit zone
The 30mph speed limit may be varied to another speed limit. The upper panel may be replaced by a roundel in the form of diagram 677 against a grey background to indicate that a national speed limit applies
also applies where a road outside the zone has a junction with the side of a road that is within the zone (i.e. the major road at the junction is within the zone and the side road is outside the zone). Only one size of sign is prescribed, although the lower panel may be varied or omitted. The speed limit roundel must not be varied to any other speed limit. }} 14.32 The end of the zone is indicated by the sign to diagram 675, with the upper panel showing the adjacent speed limit. Where this is the national speed limit, the roundel is varied to diagram 671 on a grey background as detailed on working drawing P 675 (see para 1.9). Two signs to diagram 675 should be provided, one on each side of the carriageway, unless they are placed at a junction. Reduced signing might then be possible (see paras 14.10, 14.12 and 14.15). Where the adjacent speed limit is 20 mph (without traffic calming features), the signs to diagram 675 are replaced by 20 mph terminal signs to diagram 670.
EXTENDING THE LENGTH OF AN EXISTING 30 MPH SPEED LIMIT
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7032 Temporary sign indicating the start of a newly imposed 30mph speed limit which is contiguous to an existing 30 mph speed limit
14.33 Direction 11(4)(a) does not permit a 30 mph speed limit to have repeater signs where a road has carriageway lighting (see para 14.21). Any adjacent length of road which is also lit and subject to a different speed limit, including the national limit, will have repeater signs (other than a 20 mph zone). Should an order be made to extend the 30 mph limit into this adjacent length of road, the terminal signs will be moved to the new speed limit changeover point and the repeater signs removed entirely. Regular drivers might not at first realise that the speed limit has changed; they might not notice that the speed limit signs have been removed. A sign to diagram 7032 should therefore be erected to advise drivers that a new 30 mph speed limit is in force (see figure 14-19).
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