Quick Guide For Road Works Warning Signs

– By ANewDriver


Warning signs for road work will warn you of hazards ahead, such as roundabouts, crossroads, dangerous bends or anything else that would call on you to drive more carefully.

You should always take special care when you see a warning sign. If you fail to observe these signs you could create an emergency. Like other warning signs, these are diamond or rectangular in shape and have a black border and black symbols or text. However, they are orange in colour instead of yellow.


Sign for roadworks ahead Roadworks ahead
Sign for one-lane crossover out One-lane crossover (out)
Sign for one-lane crossover back One-lane crossover back)
Sign to move to the left (one lane) Move to left (one lane)
Sign to move to the right (one lane) Move to right (one lane)
Sign to move to the left (two lanes) Move to left (two lanes)
Sign to move to the right (two lanes) Move to right (two lanes)
Sign for an obstruction between lanes Obstruction between lanes
Sign showing end of obstruction between lanes End of obstruction between lanes
Sign showing start of central reserve or obstruction Start of central reserve or obstruction
<empSign showing end of central reserve or obstruction End of central reserve or obstruction
Sign showing lanes diverging at crossover Lanes diverge at crossover
Sign showing lanes rejoining at crossover Lanes rejoin at crossover
Sign showing two lanes crossover (back) Two-lanes crossover (back)
Sign showing two lanes crossover (out) Two-lanes crossover (out)
Sign showing single lane Single lane (for shuttle working)
Sign showing two-way traffic Two-way traffic
Sign showing road narrows from left Road narrows from left
Sign showing road narrows from right Road narrows from right
Sign showing road narrows on both sides Road narrows on both sides
Sign showing nearside lane (of two) closed Nearside lane (of two) closed
Sign showing offside lane (of two) closed Offside lane (of two) closed
Sign showing offside lane (of three) closed Offside lane (of three) closed
Sign showing nearside lane (of three) closed Nearside lane (of three) closed
Sign showing two offside lanes (of three) closed Two offside lanes (of three) closed
Sign showing two nearside lanes (of three) closed Alternative Sign showing two nearside lanes (of three) closed Two nearside lanes (of three) closed.
Two alternative styles.
Sign showing offside lane (of four) closed Offside lane (of four) closed
Sign showing nearside lane (of four) closed Nearside lane (of four) closed
Sign showing Two offside lanes (of four) closed
Two nearside lanes Closed Two nearside lanes (of four) closed
Sign showing Side road on left Side road on left
Sign showing Side road on right Side road on right
Sign showing Site access on left Site access on left
Sign showing Site access on right Site access on right
Sign showing Temporary traffic signals ahead Temporary traffic signals ahead
Sign showing Flagman ahead Flagman ahead
Sign showing Queues likely Queues likely
Sign showing hump or ramp Hump or ramp
Sign showing uneven surface Uneven surface
Sign showing slippery road Slippery road
Sign showing loose chippings Loose chippings
Sign showing pedestrians cross to the left Pedestrians cross to left
Sign showing pedestrians cross to the right Pedestrians cross to right
Sign showing Overhead electric cables Overhead electric cables
Sign showing detour ahead Detour ahead
Sign showing Detour to left Detour to left
Sign showing Detour to left Detour to right
Sign showing road closed Road closed
Sign showing diverted traffic left Diverted traffic left
Sign showing diverted traffic Diverted traffic Right
Sign showing diverted traffic Diverted traffic
Sign showing diverted traffic Diverted traffic
Sign showing end of detour End of detour
Sign showing detour destination Detour destination

Information plates at roadworks

Sign showing distance (200m) Distance
Sign showing length (for X km) Length
Sign showing direction Direction
Sign showing direction and distance Direction and Distance
Sign showing end End
Sign showing cautionart speed (35km/h) Cautionary speed
Sign showing slow Slow
Sign showing concealed entrance Concealed entrance
Sign showing type of works Type of works
Sign showing use hard shoulder Use hard shoulder
Sign showing hard shoulder closed Hard shoulder closed
Sign showing unfinished road surface Unfinished road surface
Barrier boards (red and white) Barrier Boards
Chevron boards (black and yellow) Chevron board
Sign showing speed limit (30km/h) ahead (200m) Speed limit ahead

Manual traffic control sign at roadworks

Sign showing flagman ahead Flagman ahead
Sign showing Stop Stop
Sign showing Go Sign showing Téigh (go in Irish) Either form of Go or Téigh can be used

Quick Guide To Motorway Signs

By aNewDriver


A quick guide to Motorways Signs brings you on this Blog the most used signs on Irish roads, as part of our Understanding Traffic Signs posts. We hope you find it helpful and easy to access whenever you may need it.

Motorway signs are rectangular with blue backgrounds and white writing or symbols. Below are the most used signs on Irish roads:


Motorway ahead Motorway ahead
Sign for Motorway ahead Motorway ahead
Advance Direction Sign Advance direction sign
Entry to motorway Entry to motorway
300m to next exit 300m to next exit
200m to next exit 200m to next exit
100m to next exit 100m to next exit
Motorway ends 1km ahead Motorway ends 1km ahead
Motorway ends 500m ahead Motorway ends 500m ahead
End of motorway End of motorway
Route confirmatory sign for M7 Route confirmatory sign for M7
Advance direction sign for destination Advance direction sign for destination