Page:UK Traffic Signs Manual - Chapter 8 - Part 2- Traffic Safety Measures and Signs for Road Works and Temporary Situations) - Operations 2009.pdf/138

MOBILE LANE CLOSURE TECHNIQUE

The requirements are:
 * one block vehicle B carrying a light arrow sign (or sign to diagram 7403) on the hard shoulder;
 * working vehicle A carrying a “keep left/right” sign to diagram 610 is positioned in advance of block vehicle (B);
 * the block vehicle B may be dispensed with if:
 * the works vehicle A carries a light arrow sign (or a sign to diagram 7403); and
 * is fitted with a LMCC and meets the requirements of a block vehicle and is substantial e.g. a sweeper weighing in excess of 10 tonnes.

NOTE: The light arrow sign shall not display any form of arrow when on a two-way single carriageway road and, other than at the scene of an incident, the light arrow sign shall not display any form of arrow when on a hard shoulder of a dual carriageway. 136