Page:UK Traffic Signs Manual - Chapter 8 - Part 1 (Traffic Safety Measures and Signs for Road). Designs 2009.pdf/237

DUAL CARRIAGEWAY ROADS For works located on the off side of the carriageway of a dual carriageway road, entry to the works area is from the safety zone in advance of the works area (Plan DWA3).

The principles are:
 * a "WORKS ACCESS ONLY 100yds"* sign (7306) is placed on the off side, after the end of the entry taper, 100m in advance of the works access;
 * a "WORKS TRAFFIC ONLY" sign (7301 variant) is placed within the safety zone coning adjacent to the off side running lane immediately before the start of the works access;
 * a "WORKS TRAFFIC MERGING 100yds"* sign (7307) is placed within the safety zone coning adjacent to the off side running lane 100 m in advance of the works exit;
 * a "WORKS EXIT" sign (7302) is placed on the off side in the central reservation at the works exit at the end of the works; and
 * coning to Detail B is used either side of the entry for works traffic.

In locating the entry for works traffic consideration should be given to the volume of delivery vehicles particularly during surfacing operations to ensure adequate storage space is available within the works area to keep the access point clear at all times. * Signs to diagrams 7306 and 7307 may have the distances varied if required.

When partial contra-flow works are in progress, works traffic may not be able to exit from the works into a dedicated running lane (see Plan DZE6, Section D619). In such cases exit from the works area will be required through the safety zone following the works area. Exit into the near side lane is preferable to the contra-flow lane.

The principles for such an exit are:
 * a "WORKS TRAFFIC MERGING 100yds" sign (7307) is placed within the safety zone 100yds in advance of the works exit;
 * a "WORKS EXIT" sign (7302) is placed within the safety zone immediately before the works exit; and
 * coning to Detail B is used either side of the exit for works traffic.

The following plans show the signs specifically required for signing works accesses and exits. These supplement the normal traffic management signing shown in Sections D615 to D619. Only coning and certain selected signs have been shown for clarity. 236