The Speed Limit 40 km/h sign (RUS-064) is a regulatory sign that legally mandates a maximum speed of 40 kilometres per hour on the road ahead. This sign is binding and instructs drivers to reduce their speed to 40 km/h or less before reaching the controlled point. Always pay attention to any supplementary plates that might specify when or where this speed limit applies, as variations in time, direction, or vehicle type are possible.
This regulatory sign clearly defines the mandatory 40 km/h speed limit in effect; understanding its precise meaning is crucial for safe driving and theory test success. Familiarise yourself with this common road sign to ensure compliance with Irish traffic rules and avoid penalties.
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 (40 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-064 - Speed Limit (40 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-064 sign indicates that the maximum legal speed you are permitted to drive is 40 km/h. You must not exceed this speed from the point where the sign is displayed, or as otherwise indicated by a supplementary plate.
You must comply with the instruction before reaching the controlled point, meaning you should adjust your speed to 40 km/h or below as you approach or pass the sign. It's not an immediate requirement to brake hard but to ensure you are at or below the limit by the time you are governed by it.
Generally, regulatory signs like the 40 km/h speed limit are strictly enforced. Exceptions are rare and would only apply if another sign, a supplementary plate, road marking, or a Garda's direction clearly permits it. Never assume an exception without explicit confirmation.
A common trap is assuming the speed limit only applies to specific parts of the road or ignoring supplementary plates. Learners might also forget to check for signs indicating the end of the speed limit. Always read the sign and any accompanying plates carefully.
Yes, supplementary plates can modify the application of the speed limit. For example, a plate might indicate the limit applies only during specific hours, applies for a certain distance, or is for a particular type of vehicle. Always look for and read these plates.
A clear reference image of the RUS-064 - Speed Limit (40 km/h) road sign used in Ireland.

The RUS-064 - Speed Limit (40 km/h) road sign may also be known by these alternative names or terms.
The RUS-064 - Speed Limit (40 km/h) road sign is part of the Regulatory Signs category, which groups together signs with similar rules and functions.
Studying similar speed limit signs side-by-side helps you distinguish nuances, improving recall for your Irish Driver Theory Test revision. This traffic sign comparison is key to mastering speed restrictions and ensuring accurate sign recognition.

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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.
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