The 'Route of the Main Road at the Junction' supplementary plate (815.1) works exclusively with the main traffic sign positioned above it. Its purpose is to precisely define how the main sign's instruction applies, often by specifying distance, time, vehicle type, or particular road conditions. Always read this plate in conjunction with the main sign to grasp the complete traffic instruction and avoid common theory exam errors.
This supplementary plate is essential for accurately interpreting primary road signs, clarifying the exact route of the main road at a junction. Correctly understanding this sign's meaning is vital for making safe decisions and passing your driving theory test.
The Route Of The Main Road At The Junction 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 815.1 - The Route Of The Main Road At The Junction 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 815.1 sign is a supplementary plate. It doesn't provide a standalone instruction but clarifies the exact scope or application of the main traffic sign placed directly above it, detailing conditions like distance, time, or vehicle class.
You must always read the 815.1 plate together with the main sign above it. For example, if the main sign prohibits parking and the 815.1 plate shows a distance, the parking prohibition only applies within that specified distance.
A frequent error in theory tests and real traffic is to only remember the main sign's rule without considering the supplementary plate. The 815.1 plate modifies or narrows the main sign's instruction, so ignoring it leads to misinterpretation.
No, the 815.1 'Route of the Main Road at the Junction' supplementary plate has no meaning by itself. It is designed solely to provide additional context and clarify the instruction of the primary sign it accompanies. You must always look at both.
This means 'read the supplementary plate together with the main sign'. The 815.1 plate is an example of such a plate, and this instruction emphasizes that you must combine the information from both signs to understand the complete traffic rule.
A clear reference image of the 815.1 - The Route Of The Main Road At The Junction road sign used in Iceland.

The 815.1 - The Route Of The Main Road At The Junction road sign may also be known by these alternative names or terms.
The 815.1 - The Route Of The Main Road At The Junction road sign is part of the Supplementary Plates category, which groups together signs with similar rules and functions.
Comparing related road signs, like this supplementary plate with other junction signs, sharpens your recognition and recall for the Icelandic theory test. Effective traffic sign comparison and study of similar road signs are crucial for accurate interpretation and exam success.

The 802.2 Distance Plate clarifies when and where the main sign's rule applies.

Understand the Length of Validity Plate (804.1) to correctly interpret traffic signs.

Understand the Length of Effect Plate (804.2) and its impact on main road signs.

The Time Period Plate (806.1) Always Works With Another Sign Above It

The Time Period Plate (806.2) Modifies Main Signs to Show When They Apply

This supplementary plate clarifies that the main sign applies specifically to passenger cars under 3.5 tonnes.

Understand the 'Truck' Vehicle Class Plate and How it Modifies Main Signs

This Supplementary Plate Clarifies Delivery Rules for the Sign Above.
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The Route Of The Main Road At The Junction 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.
The Route Of The Main Road At The Junction 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.
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