This prohibitory road sign, code 314, indicates a restriction on the maximum height of vehicles allowed to proceed. It's crucial to note the specific numerical value indicated on the sign or any supplementary plate, as this defines the exact clearance. Drivers must immediately comply with this restriction, which typically begins at the sign itself. Always be vigilant for supplementary plates that might specify which vehicles are affected, or end signs that signify the restriction’s conclusion.
This sign restricts vehicle height, a crucial detail for avoiding damage and ensuring safety on Icelandic roads. Mastering its meaning is essential for your theory test revision and overall driving knowledge.
Limited Vehicle Height, Numerical Value Varies is a restrictive sign that removes a movement, access right, or operating condition that would otherwise be possible. It is used to manage safety, protect vulnerable users, reduce conflict, or keep unsuitable vehicles and behaviour out of a particular road environment. The restriction usually starts at the sign itself and continues until it is cancelled, replaced, or naturally ends according to the road-sign rules. Whenever a supplementary plate is present, it tells you exactly which vehicles, times, distances, or conditions the ban covers.
This sign prohibits or restricts limited vehicle height, numerical value varies from the point where it applies. Drivers must obey the restriction immediately and look for any supplementary plate or end sign that explains the scope, duration, or exceptions.
Get clear, practical answers to the most common questions about the 314 - Limited Vehicle Height, Numerical Value Varies 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 Icelandic driving theory exam in Iceland.
The 314 sign means that vehicles exceeding a specific height are prohibited from continuing past the sign. The exact height limit is usually displayed numerically on the sign itself or on a supplementary plate attached below it. If no number is visible, check for specific vehicle types or context.
If your vehicle's height, including any load, exceeds the limit shown on the sign or supplementary plate, you must not proceed. You should either find an alternative route or perform a manoeuvre that allows you to turn back or take a different direction before reaching the restricted area.
Exceptions are typically indicated by supplementary plates. These might specify that the restriction applies only to certain types of vehicles, during specific times, or over a particular distance. Always read any accompanying plates carefully for details on exceptions or qualifying conditions.
A common trap is assuming the sign doesn't apply because the road looks wide or clear. Learners might also forget to check for supplementary plates that provide crucial details about the restriction's scope. Always treat this sign seriously and comply immediately; failing to do so indicates a lack of awareness and poor hazard perception.
The restriction generally applies from the point where the sign is displayed until it is officially cancelled. This can be by a specific 'End of Restriction' sign, a sign indicating the end of a zone, or sometimes at the next major junction, unless otherwise stated by a supplementary plate.
A clear reference image of the 314 - Limited Vehicle Height, Numerical Value Varies road sign used in Iceland.

The 314 - Limited Vehicle Height, Numerical Value Varies road sign may also be known by these alternative names or terms.
The 314 - Limited Vehicle Height, Numerical Value Varies road sign is part of the Prohibition and Restriction Signs category, which groups together signs with similar rules and functions.
Reviewing signs like the 'Limited Vehicle Height' marker alongside similar traffic signs aids in distinguishing critical details and prevents common errors. This comparative study sharpens your sign recognition skills, which is vital for effective theory test revision and safe driving.

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After reviewing the full list of Icelandic road signs, reinforce your learning with targeted practice. Explore our sign group categories or take a specific quiz to test your recognition and recall. Ensure you're fully prepared to identify and interpret all traffic signs for your upcoming driving theory exam.
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