The Speed Limit (120 km/h) road sign, coded RUS-039, is a regulatory sign that sets a maximum legal speed. This sign mandates that you must not exceed 120 kilometres per hour on this stretch of road. In Ireland, speed limits are crucial for safety and are strictly enforced, so always adhere to the posted limit and watch for any supplementary plates that might alter the restriction by distance or vehicle type. Understanding and obeying this sign is vital for passing your theory test and driving safely.
This regulatory sign dictates a mandatory 120 km/h speed limit, crucial for your Irish Driver Theory Test preparation and safe driving. Mastering road sign meaning is essential for understanding traffic rules and ensuring compliance on Irish roads.
This regulatory sign creates a binding road rule at or after the point where it is placed. The sign may be circular, rectangular, or lane-specific depending on whether it gives a mandatory instruction, restriction, prohibition, or traffic-control rule. In theory practice, focus on the exact action required and check whether any supplementary plate limits the rule by time, direction, vehicle type, or distance.
Speed Limit (120 km/h) sets a legal instruction, restriction, or prohibition that drivers must obey. It may require a specific movement, ban a manoeuvre, reserve a road space, or set a speed or access rule.
Get clear, practical answers to the most common questions about the RUS-039 - Speed Limit (120 km/h) road sign. Learn how the sign works, what rules it represents, and how it affects real driving situations. This FAQ strengthens your understanding and supports accurate decision making for the Irish driving theory exam in Ireland.
The RUS-039 sign indicates that the maximum legal speed you are permitted to travel at on this particular road is 120 kilometres per hour. You must reduce your speed to 120 km/h or below.
This speed limit is commonly found on motorways and some high-quality national roads in Ireland, where conditions permit higher speeds. Always be observant as you drive.
A common error is assuming a higher speed limit is permitted when it is not signed, or failing to slow down adequately before reaching the sign. Learners might also overlook supplementary plates that could reduce the effective speed limit for certain times or vehicle types. Always drive at a speed appropriate for the conditions and the signed limit.
Generally, no. This is a regulatory sign, meaning it's a strict rule. Exceptions would only apply if another sign, a road marking, or instructions from an Garda Síochána clearly indicated otherwise. You must comply with the signed limit.
Typically, a general speed limit sign like RUS-039 applies to passenger cars. However, always check for supplementary plates. Some vehicle categories, such as heavy goods vehicles or vehicles towing trailers, may have lower mandatory speed limits, regardless of the posted sign.
A clear reference image of the RUS-039 - Speed Limit (120 km/h) road sign used in Ireland.

The RUS-039 - Speed Limit (120 km/h) road sign may also be known by these alternative names or terms.
The RUS-039 - Speed Limit (120 km/h) road sign is part of the Regulatory Signs category, which groups together signs with similar rules and functions.
Compare the 120 km/h speed limit sign with other regulatory signs to solidify your understanding. This targeted traffic sign comparison aids recognition and reduces errors for your theory test revision.

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After reviewing all Irish road signs, strengthen your knowledge further by exploring specific categories or taking dedicated practice questions. This targeted approach helps solidify your recognition and recall skills, ensuring you are fully prepared for the visual sections of your Driver Theory Test.
All Irish Road Signs List