Page:UK Traffic Signs Manual - Chapter 3 Regulatory Signs. 2008 (Second Impression 2008).pdf/121

 Figure 14-18 Speed limit on two—way link road between a dual carriageway road with a speed limit of 60mph and a side road with a speed limit of 40 mph (see para 14.26)

The placing of speed limit terminal and repeater signs is generally the same as for other roads. However, motorways do not have repeater signs indicating the national speed limit where there is a system of street lighting. Most speed limit signs on motorways will be at junctions with all—purpose roads although some lengths of motorway, particularly link roads or slip roads, will have speed limits other than the national limit. In such cases, terminal and repeater signs must be provided in accordance with tables 14-1 to 14-4. Where the start of a motorway (main carriageway or entry slip road) and the adjoining all—purpose road both have the same speed limit, other than the national limit, a repeater sign to diagram 670 should be co—located with the sign to diagram 2901 that indicates the start of the motorway. This ensures that drivers are aware that the national motorway speed limit of 70 mph does not apply at this point (see para 14.28). Where the speed limit on a motorway ends and becomes the national limit, terminal signs to diagram 671 must be erected.

Where a motorway subject to the national speed limit has a junction with an all—purpose road that has a different limit, terminal signs to diagram 670 must be provided on the exit slip road to indicate the speed limit on the all—purpose road. The requirement under section 85 of the to provide prescribed speed limit signs (see para 14.1) does not apply to motorways subject to the national speed limit. Signs to diagram 671 are not needed, therefore, on the entry slip road. The sign to diagram 2901, indicating the start of motorway regulations, also indicates that the national speed limit applies. There will be situations where the all—purpose road and the motorway are both subject to the national speed limit, and the all—purpose road or both roads have a system of street lighting. A repeater sign to diagram 671, to be viewed by drivers leaving the motorway, should then be placed on the first lighting column beyond the point where the motorway regulations end (indicated by the sign to diagram 2931). If the all—purpose road is subject to the national speed limit and is unlit, no signs are required. The signing 119