Warning signs for road work
If there is construction work on the roads and men are at work to ensure the safety of the workers and the drivers both, road work warning signs are placed to make them use the safe way out of the sight.

Road works ahead
Warns that there are road works ahead, with workers, machinery or changed road layouts.

One-lane crossover (out)
This temporary roadworks sign warns that one traffic lane will cross out of its normal carriageway and follow a shifted route through the works area.

One-lane crossover (back)
This temporary roadworks sign warns that the diverted traffic lane will cross back towards its normal carriageway alignment.

Move to right (one lane)
Warns that traffic in your lane must shift across to the right ahead because of road works.

Move to left (one lane)
Warns that traffic must move across to the left ahead because of road works.

Move to right (two lanes)
Warns that both lanes of traffic shift to the right ahead because of road works.

Move to left (two lanes)
Warns that both lanes of traffic shift to the left ahead because of road works.

Obstruction between lanes
Warns that an obstruction or work area sits between lanes ahead, and traffic in the same direction passes on either side.

End of obstruction between lanes
Shows that the obstruction between the lanes has ended and the lanes come back together.

Start of central reserve or obstruction
Warns that a central reserve or obstruction starts ahead, separating your traffic from oncoming traffic.

End of central reserve or obstruction
Shows that the central reserve or obstruction ends and the road returns to an undivided two-way layout.

Lanes diverge at crossover
Shows that at a road works crossover the lanes split, with one lane staying on your carriageway and one crossing over to the other side.

Lanes rejoin at crossover
Shows that lanes which were split at a road works crossover come back together on the same carriageway.

Two-lanes crossover (back)
Shows that both lanes of traffic cross back from the opposite carriageway to their normal side after road works.

Two-lanes crossover (out)
Shows that both lanes of traffic cross over onto the opposite carriageway because of road works.

Single-lane (for shuttle working)
Warns that the road ahead is reduced to a single lane used by each direction in turn, controlled by signals or a stop/go operator.

Two-way traffic
Warns that, because of road works, there is two-way traffic ahead on a road that may normally carry one direction, such as one carriageway of a dual carriageway.

Road narrows from left
Warns that road works narrow the road from the left ahead.

Road narrows from right
Warns that road works narrow the road from the right ahead.

Road narrows on both sides
Warns that road works narrow the road from both sides ahead.

Offside lane (of two) closed
Warns that the right-hand (offside) lane of a two-lane carriageway is closed ahead.

Nearside lane (of two) closed
Warns that the left-hand (nearside) lane of a two-lane carriageway is closed ahead.

Offside lane (of three) closed
Warns that the right-hand lane of a three-lane carriageway is closed ahead.

Nearside lane (of three) closed
Warns that the left-hand lane of a three-lane carriageway is closed ahead.

Two offside lanes (of three) closed
Warns that the two right-hand lanes of a three-lane carriageway are closed, leaving only the left lane open.

Two nearside lanes (of three) closed. Two alternative styles
Warns that the two left-hand lanes of a three-lane carriageway are closed, leaving only the right lane open.

Offside lane (of four) closed
Warns that the right-hand lane of a four-lane carriageway is closed ahead.

Nearside lane (of four) closed
Warns that the left-hand lane of a four-lane carriageway is closed ahead.

Two offside lanes (of four) closed
Warns that the two right-hand lanes of a four-lane carriageway are closed, leaving the two left lanes open.

Two nearside lanes (of four) closed
Warns that the two left-hand lanes of a four-lane carriageway are closed, leaving the two right lanes open.

Side road on left
Warns of a side road on the left within the road works area.

Side road on right
Warns of a side road on the right within the road works area.

Site access on left
Warns of an access point on the left where works vehicles enter and leave the site.

Site access on right
Warns of a works site access on the right where construction vehicles may cross or join the road.

Temporary traffic signal ahead
Warns of temporary traffic lights ahead controlling traffic through the road works.

Flagman ahead
Warns that a flagman is controlling traffic at the road works ahead.

Slippery road
Warns that the road surface in the road works area may be slippery.

Loose chippings
Warns of loose stone chippings on the road surface, usually after resurfacing.

Queues likely
Warns that traffic queues are likely ahead because of the road works.

Hump or ramp
Warns of a temporary hump or ramp in the road surface at the road works.

Pedestrian cross to right
Warns that pedestrians are being diverted to cross the road to the right because the footpath is closed by works.

Overhead electric cables
Warns of overhead electric cables at the road works ahead.

Pedestrian cross to left
Warns that pedestrians are diverted to cross the road to the left because of road works.

Uneven surface
Warns of an uneven road surface or a drop at the edge of the road in the works area.

Detour ahead
Warns that a detour begins ahead, at the distance shown, because the normal route is closed or restricted.

Detour to left
Directs traffic to follow a detour that turns to the left.

Detour to right
Directs traffic to follow a detour that turns to the right.

Road closed
Tells drivers that the road ahead is closed to traffic because of road works.

Diverted traffic left
Directs diverted traffic to turn left onto the alternative route.

Diverted traffic
Marks the route that diverted traffic should follow around a closure.

End of detour
Shows that the detour ends and traffic rejoins the normal route.

Detour destination
Shows the destination reached by following the detour route.
