Page:UK Traffic Signs Manual - Chapter 8 - Part 1 (Traffic Safety Measures and Signs for Road). Designs 2009.pdf/229

DUAL CARRIAGEWAY ROADS

For principles for the changeover see Plan DZE2.

For principles for the crossover see Plan DZE5.

Studs and cylinders to Detail G1 are used for a minimum of 50 m at the return splitter arrangement where the return crossover lanes run alongside the lane that returns from running on the hard shoulder.

Where the road’s permanent speed limit does not change within the works site, a sign combining the signs to diagram 7001, 645 and 671 or 670 on a yellow background should be used on both sides of the carriageway to mark the end of the road works and all associated restrictions, in place of the signs to diagram 7001 and 645. Where the permanent speed limit does change terminal speed limit signs are required (see paragraph D6.19.3). 228