Irish Road Signs & Driving Knowledge

Frequently Asked Questions

Everything you need to know about Irish traffic sign meanings, speed limits, penalty points, and Driver Theory Test (DTT) preparation.

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Irish traffic signs are categorized into several types:

Warning Signs (triangular, red and white)

Regulatory Signs (circular, red and white)

Mandatory Signs (circular, blue and white)

Informational Signs (rectangular, various colors)

Directional Signs (rectangular, green and white)

Roadwork Signs (temporary, yellow and black), and Supplementary Plates (rectangular, white with black text).

Regulatory signs (circular, red and white) tell you what you must or must not do, such as speed limits, no entry, or stop signs. Warning signs (triangular, red and white) alert you to potential hazards ahead, such as sharp bends, pedestrian crossings, or road works.

Default speed limits in Ireland are:

50 km/h in built-up areas

80 km/h on regional roads

100 km/h on national roads, and 120 km/h on motorways. These may be reduced by signs for safety reasons.

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Frequently Asked Questions

What are the different types of traffic signs in Ireland?

What do the colors on traffic signs mean?

What is the difference between regulatory and warning signs?

How should I approach a roundabout in Ireland?

What do the different road markings mean?

What should I do when I see a school crossing sign?

What are the speed limits in Ireland?

What do temporary traffic signs mean?

How should I handle road works?

What do the different arrow signs mean?

What should I do at a pedestrian crossing?

What do the different parking signs mean?

How should I approach a junction?

What do the different lane signs mean?

What should I do when I see a speed camera sign?

What do the different weather-related signs mean?

How should I handle emergency vehicles?

What do the different weight restriction signs mean?

What should I do at a level crossing?

What do the different height restriction signs mean?

How should I approach a traffic light?

What do the different bus lane signs mean?

What should I do when I see a cycle lane?

What do the different motorway signs mean?

How should I handle road closures?

What do the different tourist signs mean?

What should I do when I see a no entry sign?

What do the different width restriction signs mean?

How should I approach a one-way street?

What do the different priority signs mean?

What should I do when I see a no overtaking sign?

What do the different lane closure signs mean?

How should I handle road works at night?

What do the different environmental signs mean?

What should I do when I see a no stopping sign?

What do the different junction signs mean?

How should I approach a sharp bend?

What do the different road surface signs mean?

What should I do when I see a no U-turn sign?

What do the different traffic calming signs mean?

How should I handle road works in bad weather?

What do the different cycle path signs mean?

What should I do when I see a no right turn sign?

What do the different road width signs mean?

How should I approach a level crossing with barriers?

What do the different road works signs mean?

What should I do when I see a no left turn sign?

What do the different road closure signs mean?

How should I handle road works with temporary traffic lights?

What do the different road surface condition signs mean?

What should I do when I see a no entry for vehicles sign?

What do the different road alignment signs mean?

How should I approach a road works with lane restrictions?

What do the different road works vehicle signs mean?

What should I do when I see a no entry for goods vehicles sign?

What do the different road works equipment signs mean?

How should I handle road works with pedestrian diversions?

What do the different road works safety signs mean?

What should I do when I see a no entry for buses sign?

What do the different road works communication signs mean?

How should I handle road works with emergency access?

What do the different road works environmental signs mean?

What should I do when I see a no entry for cycles sign?

What do the different road works traffic management signs mean?

How should I handle road works with restricted hours?

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