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10 Common Road Signs in Ireland and What They Mean

It’s important to be familiar with common markings to make every day driving easier and help you react quickly when it matters most.

Published: 28 Sep 2022 Last updated: 03 Jul 2026 3 mins read

By Aviva Ireland

Key points:

Understand parking, overtaking and junction rules through clear examples of road markings.
Recognise warning lines and crossings to help you spot potential hazards earlier.
Stay up to date with the rules of the road to drive safely and confidently across Ireland.

How road markings help guide your driving

When you’re on the roads there are lots of things to watch out for, with road markings among the most important. They’re to guide and warn drivers on anything you need to know on a given road, they’re ever-present across the Irish road network – and every single Irish road sign means something.

As you’d expect, road markings in Ireland have progressed over time as our roads have evolved. We’ve put together a concise guide to understanding the most common Irish road signs.

1. Single yellow lines

road markings – single yellow lines – Aviva Ireland

If there’s a single yellow line along the edge of the road, you can’t park there during certain times. You should see a nearby sign containing all the pertinent information you need to know.

2. Double yellow lines

Irish road markings – double yellow lines – Aviva Ireland

Double yellow lines along the edge of the road mean you can’t park there at any time. It applies at all hours of the day, including Sundays and Bank Holidays.

3. Single broken yellow line along the left-hand side of the road

common road markings – single broken yellow line along the left-hand side of the road – Aviva Ireland

Double yellow lines along the edge of the road mean you can’t park there at any time. It applies at all hours of the day, including Sundays and Bank Holidays.

4. A solid line at a junction, with a broken line behind it

Irish common road markings – a solid line at a junction, with a broken line behind it – Aviva Ireland

Double yellow lines along the edge of the road mean you can’t park there at any time. It applies at all hours of the day, including Sundays and Bank Holidays.

5. Single broken white lines along the centre of the road

Ireland road markings – Single broken white lines along the centre of the road – Aviva Ireland

Double yellow lines along the edge of the road mean you can’t park there at any time. It applies at all hours of the day, including Sundays and Bank Holidays.

6. Single longer broken white lines, with shorter gaps between the lines

road markings – single longer broken white lines, with shorter gaps between the lines – Aviva Ireland

Double yellow lines along the edge of the road mean you can’t park there at any time. It applies at all hours of the day, including Sundays and Bank Holidays.

7. Single solid white line

Irish road markings – single solid white line – Aviva Ireland

A single solid white line which runs along the centre of the road shows you that you should not overtake or perform a U-turn at any time. You must keep to the left, unless in an emergency or for access.

8. Double broken white lines

Irish common road markings – double broken white lines – Aviva Ireland

Double broken white lines along the centre of the road, signal that a solid white line lies ahead.

9. White lines that run in zig zags

common road markings – white lines that run in zig zags – Aviva Ireland

You’ll see white/yellow lines that run in zig zags at the edge of roads. These show that you’re approaching a pedestrian crossing, and you can’t park in this area. You should also not overtake the leading vehicle on approach to the crossing.

10. Yellow diagonal box in the centre of the road

Ireland road markings – yellow diagonal box in the centre of the road – Aviva Ireland

This yellow box indicates a junction, and you can’t stop or park in this area or obstruct other road users. You should only enter one of these boxes when you are turning right and your exit is clear, providing it’s safe to do so.

Even if you’ve already passed your driving test, it’s always a good idea to keep up to speed with Irish road signs and markings – and, of course, any changes which may come into effect. Check out the Rules of the Road Book for everything you’ll need to know to keep you safe on the roads.

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