Page:UK Traffic Signs Manual - Chapter 8 - Part 1 (Traffic Safety Measures and Signs for Road). Designs 2009.pdf/108

 management provisions. Information signs are a distraction and should not be placed within these areas where high driver concentration is required.

The initial sign should be located at least 50m beyond the downstream end of a taper, or lane diversion, at a position where the length of coned-off or fenced area permits the legend to be read safely. Repeater signs, where appropriate, should be placed at about 1 km intervals through the works.

Each sign should be either permanently located where it is safe and convenient to do so, or kept to one side (e.g. within the works on the verge) ready to be displayed at short notice. When not in use the sign face on permanently located signs should be covered to fully obscure the legend, or where sign faces are demountable they may be removed and stored in a safe place until they are required to be displayed.

Information signs must not be stored in the safety zone, propped against vehicle safety barriers or left lying in the central reservation between safety barriers. Safety barrier beams are designed to deflect when impacted and any objects, such as signs, left lying around could interfere with their performance and create a hazard to errant vehicles and other road users.

End of road works signs are required to cancel all imposed temporary road works related traffic restrictions and to indicate that normal regulations and road conditions now apply. These signs should be placed beyond works greater than 50m in length measured between the end of the entry taper and the beginning of the exit taper. End signs are not necessary at works on minor roads as defined in Section D5.3.

Where a temporary mandatory speed limit is imposed and the permanent speed limit beyond the road works is different to that at the start of the works or on adjoining roads, the termination signs to diagram 670 or 671, as appropriate, must be located on both sides of the road on both single and dual carriageway roads to the size indicated in Table A1.1 (Appendix 1).

Where a temporary mandatory speed limit is imposed and the permanent speed limit beyond the works is the same as at the start of the works and on the adjoining roads the combined sign can be used, see paragraph D4.14.4 below. The Regulations only require signs to diagram 7001 with an "End" plate to diagram 645.

The end of road works and permanent mandatory speed limit signs on a yellow backing board can be used for works where a temporary speed limit has been applied, see paragraph D4.14.3 above for conditions. The lower sign should be to diagram 671 (national 750mm speed limit sign), or to diagram 670 in cases where the permanent speed limit is lower than the national speed limit. The sign must be sited on both sides of the carriageway. 107