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A circular sign with a red border showing the number 30.30
regulatory

Maximum speed limit 30 km/h

The maximum speed on this road is 30 km/h.

What it means in practice

A 30 km/h limit is a special speed limit applied by a local authority, typically in housing estates, town centres and other densely populated areas. It is a maximum, not a target.

Description

A circular sign with a red border showing the number 30.

speedurbanslow zone

Sources

  • Rules of the Road · Road Safety Authority · Edition reflecting road traffic law as at 1 March 2025
    Last checked 2026-09-08

Other regulatory signs

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Independent learning application. Not affiliated with the Road Safety Authority or the official Driver Theory Test service. TheoryLane questions are written by TheoryLane from published Irish road-rule sources.