Where, in an emergency, it is necessaryto
close a section of motorway or othermain road to traffic, a
temporary signmay advise drivers to follow a diversionroute.
To help drivers navigate the route,black symbols on yellow patches
maybe permanently displayed on existingdirection signs, including
motorway signs. On all-purpose roads,the symbols may be used
on separate signs with yellowbackgrounds.
symbol on this sign may be replaced by route numbers
that may be used to indicate a diversion route
Different symbols are used when several location diversions
are in place in one area
incorporating a diversion route symbol that is shown alongside
the road number of the route that drivers should follow
signs indicating a diversion route (may be permanently
Temporary diversion signs may be required
when a road is closedfor reasons other than an emergency, e.g.
to carry out works.