The 5.15 'Width of lane/road' panel is a supplementary sign used in Switzerland that provides essential context to the main traffic sign it accompanies. It is never displayed alone. This panel can specify important details like the distance over which a rule applies, the length of a hazard, directional information, specific vehicle categories affected, or conditions like weather. Always consider this panel in conjunction with the primary sign to understand its full meaning and how to react appropriately.
Mastering the "Width of lane/road" supplementary panel (5.15) is crucial for accurately interpreting main traffic signs in Switzerland, ensuring you understand specific restrictions or indications for theory test revision. This detailed explanation guides your recognition and decision-making for safe driving and successful exam preparation.
This supplementary panel modifies the main sign it accompanies. It can define distance, length, direction, vehicle category, exception, weather condition, time, or the start and end of a rule. Ignoring the panel can make the main sign too broad or too narrow, so theory explanations should describe the complete sign assembly rather than the panel alone. Official catalogue code: 5.15.
The "Width of lane/road" panel adds official scope information to the main sign, such as distance, direction, category, exception, or condition. It is not read alone. Catalogue code 5.15.
Get clear, practical answers to the most common questions about the 5.15 - Width of lane/road 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 Swiss driving theory exam in Switzerland.
The 5.15 panel is used to add specific information to a main traffic sign, clarifying its scope. It helps drivers understand details such as distance, length, direction, or applicable conditions for the primary sign's instruction. It ensures the driver correctly applies the main sign's rule in the right context.
No, the 5.15 'Width of lane/road' panel is a supplementary sign and must always be read in conjunction with the main traffic sign it is placed below. It modifies or restricts the applicability of the main sign, so standing alone, it has no meaning.
This panel can specify various aspects. For example, it might indicate the distance in meters or kilometers to a hazard or restriction, the total length of a zone, the direction a rule applies to (e.g., left lane, right lane), or specific conditions such as a speed limit that only applies in wet weather.
In the theory test, questions often combine a main sign with a supplementary panel like the 5.15. Failing to understand how the panel modifies the main sign can lead to incorrect answers. For instance, a speed limit sign might have a 5.15 panel indicating it only applies for the next 500 meters, and test questions will assess if you grasp this limitation.
Ignoring the 5.15 panel means you might misunderstand the scope of the main traffic sign. You could incorrectly apply a restriction for a longer or shorter distance than intended, drive at an inappropriate speed, or miss crucial directional information. This can lead to unsafe driving situations or failing a theory exam question about the combined sign.
A clear reference image of the 5.15 - Width of lane/road road sign used in Switzerland.

The 5.15 - Width of lane/road road sign may also be known by these alternative names or terms.
The 5.15 - Width of lane/road road sign is part of the Swiss Supplementary Panels category, which groups together signs with similar rules and functions.
Comparing this sign with similar road signs aids theory test revision by highlighting key distinctions, enhancing sign recognition, and reducing confusion. Practising traffic sign comparison is crucial for accurate recall and safe driving.

The 5.01 'Distance' Panel: Modifying Main Signs for Clarity

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The 5.03 'Range of Validity' Supplementary Panel: Understanding Its Scope

The 5.04 Repetition Panel: Confirming and Extending Traffic Rules

Understand the Swiss 5.05 Start Panel: Signalling the Beginning of a Traffic Regulation

The 5.06 End Panel: Signalling the End of a Static Traffic Regulation

The 5.07 Direction Indicator Panel: Adding Context to Road Signs

Understand Sign 5.09: The Routing of a Principal Road
After reviewing the full list of Swiss road signs, delve deeper into specific categories, practice recognition with quizzes, or explore detailed explanations for each sign. Continue your comprehensive preparation for the official theory driving test.
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