This supplementary plate, often called 'Blind Height' or 'Blindhæð' in Iceland, is crucial for understanding the precise scope of the main traffic sign it accompanies. It is never displayed alone but always beneath another sign to specify details like distance, time, or vehicle class. Always read this plate in conjunction with the sign above it to grasp the complete traffic instruction, which is essential for safe driving and passing your theory exam.
The Blind Height (850.1) supplementary plate is vital for Icelandic drivers, precisely modifying the main traffic sign's meaning with specific conditions or limits. Understanding this road sign interpretation is crucial for safe navigation, avoiding violations, and mastering your driving theory test revision.
Blind Height is used beneath another sign to narrow or explain the exact effect of the main rule. It can define distance, time, vehicle class, written conditions, or another limit that changes how the main sign should be interpreted on the road. In theory questions and real traffic alike, the mistake is often to remember the main sign but forget the plate that changes its scope. The correct reading always comes from combining both elements into one complete instruction.
This supplementary plate explains more precisely how the main sign applies by adding detail about the exact scope of a main sign. It must always be read together with the main sign above it.
Get clear, practical answers to the most common questions about the 850.1 - Blind Height 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 Blind Height supplementary plate (850.1) serves to provide additional, specific information to the main traffic sign it is mounted below. Its purpose is to clarify or limit the main sign's application, for example, by defining a specific distance, time period, or the type of vehicles the main sign applies to. It ensures drivers have a precise understanding of the rule.
No, the Blind Height supplementary plate (850.1) must always be read together with the main traffic sign positioned above it. It has no independent meaning and is solely intended to modify or explain the primary sign's instruction. Treating it as a standalone sign is a common misunderstanding.
A very common mistake, both in real traffic and during the theory exam, is to forget the supplementary plate and only consider the main sign above it. This can lead to misinterpreting the scope of the rule, potentially leading to violations or unsafe driving because the specific conditions defined by the plate are ignored.
You must combine the instruction of the main sign with the clarification provided by the Blind Height plate. For example, if the main sign indicates a speed limit and the plate specifies a distance, you should only adhere to that speed limit for that exact distance. Always consider the complete instruction formed by both signs together.
Yes, it changes the scope or applicability of the main sign. It doesn't alter the fundamental meaning of the main sign itself (e.g., a speed limit remains a speed limit), but it specifies precisely where, when, or to whom that rule applies. This makes the overall instruction more specific and actionable.
A clear reference image of the 850.1 - Blind Height road sign used in Iceland.

The 850.1 - Blind Height road sign may also be known by these alternative names or terms.
The 850.1 - Blind Height road sign is part of the Supplementary Plates category, which groups together signs with similar rules and functions.
Reviewing signs similar to 'Blind Height' helps solidify your understanding of Icelandic traffic rules and distinct sign meanings. Comparing these traffic signs aids in sign recognition and reduces errors during your driving theory test revision.

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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.
View All Icelandic Road Signs