The 'Lorries with trailer' sign (code 5.23) is an important symbol used in Switzerland to identify specific road users, vehicle categories, services, or conditions. Its actual legal effect depends entirely on the context of the larger sign assembly it accompanies, such as a supplementary panel or lane signal. Always interpret this symbol in conjunction with its placement, surrounding markings, traffic lights, and any additional information panels to understand its full impact on your driving.
This Swiss symbol, code 5.23, specifically denotes lorries with trailers, a crucial element for understanding Swiss traffic rules and completing your theory test revision. Mastering its meaning within various road sign assemblies is vital for safe driving and exam success.
This Swiss pictogram identifies a road user, vehicle category, service, facility, route type, or condition. Symbols are compact by design and usually become legally relevant through the sign, panel, lane signal, or marking where they are displayed. In an exam context, name the symbol and then explain how the surrounding sign assembly uses it. Official catalogue code: 5.23.
Lorries with trailer identifies lorries with trailer as the relevant road user, vehicle class, service, facility, or condition. Its legal effect depends on the sign or panel where it appears. Catalogue code 5.23.
Get clear, practical answers to the most common questions about the 5.23 - Lorries with trailer 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 'Lorries with trailer' symbol (5.23) is a pictogram used in Switzerland to denote the presence or relevance of lorries with trailers. It doesn't impose a direct rule on its own but serves to identify this specific vehicle type, a particular service, or a road condition. Its legal meaning is always determined by the sign or panel it is part of.
You should react by understanding what the sign assembly, which includes the 'Lorries with trailer' symbol, is communicating. For example, it might indicate a lane specifically for these vehicles, a route restriction, or a service area. Pay close attention to the entire sign context – placement, supplementary panels, and road markings – to determine the correct action, which could involve changing lanes, adjusting speed, or following a specific route.
The 'Lorries with trailer' sign itself is neither a warning nor a prohibition; it's an informational symbol. It designates or identifies. Whether it leads to a warning, prohibition, or other instruction depends on the complete sign it is attached to or part of. For instance, it might be used on a sign that prohibits certain vehicles from entering a road, thus indirectly creating a prohibition for lorries with trailers.
A common trap in the Swiss theory exam is to assume the 'Lorries with trailer' symbol (5.23) applies a rule directly to your own vehicle. Learners might mistakenly think it restricts their own driving without checking the full sign context. The key is to recognise that this symbol merely identifies a specific category of road user or condition, and its implication for you depends entirely on the surrounding signage.
Yes, you should always consider the 'Lorries with trailer' sign (5.23) when driving a car, as it provides context for the road environment. Even if the sign directly relates to lorries with trailers, it can affect your driving. For example, it might mean that a particular lane is reserved for these vehicles, or that you should be extra aware of them in upcoming traffic situations or specific road layouts.
A clear reference image of the 5.23 - Lorries with trailer road sign used in Switzerland.

The 5.23 - Lorries with trailer road sign may also be known by these alternative names or terms.
The 5.23 - Lorries with trailer road sign is part of the Swiss Sign Symbols category, which groups together signs with similar rules and functions.
Reviewing related road signs like this one helps solidify your understanding and prevent common exam errors. Comparing similar traffic signs aids sign recognition and is a key part of effective theory test revision for the Swiss licence.

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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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