Prohibition of traffic with motorized vehicles with more than two wheels
The sign indicates a prohibition of traffic with motorized vehicles that have more than two wheels.
When You See This Sign
When you encounter the sign you should check how many wheels the motor vehicle you are driving has. If it has more than two wheels you may not drive in and must choose another route; two-wheeled motor vehicles are usually allowed. Also check for supplementary signs that may provide exceptions or time restrictions.
Rules & Regulations
- The sign prohibits traffic by motor vehicles that have more than two wheels (i.e., motor vehicles with three or more wheels).
- The prohibition applies to the motor vehicle's own wheels; a trailer is not counted when determining whether the ban applies.
- Any supplementary signs beneath the main sign may indicate exceptions (e.g., 'Does not apply to mopeds', time restrictions, or specific vehicle types) and thus alter the meaning of the prohibition.
- The sign is a prohibition sign (C4) and must be obeyed; violation may result in fines and other traffic law consequences.
Tips for Drivers
- Count the wheels of the vehicle you are driving before passing the sign — if your motor vehicle has three or more wheels you must choose another route.
- Always look for supplementary signs under the main sign that may indicate exceptions for certain vehicles or times.
- If your vehicle is prohibited, plan ahead: turn off or stop before the sign rather than reversing or making dangerous maneuvers.
- Be especially aware of three-wheeled vehicles, sidecars and trikes — they are usually counted as more than two wheels and are covered by the prohibition.
Common Mistakes
- Thinking that the trailer's wheels determine whether the ban applies (it is the motor vehicle's own wheels that count).
- Assuming that all motor vehicles are prohibited and overlooking that two-wheeled motorcycles or mopeds are usually permitted.
- Ignoring the exceptions or time restrictions indicated on supplementary signs beneath the main sign.
Test Yourself
Road Sign: Prohibition of traffic with motorized vehicles with more than two wheels
What applies according to this sign?
- A Motor vehicles with more than two wheels are prohibited; motorcycles and two-wheeled mopeds may pass.
- B All motor vehicles are prohibited.
- C Only heavy trucks are prohibited.
- D Vehicles with more than two passengers are prohibited.
Exam Tip
On the test you may be shown an image where a vehicle has a trailer or a sidecar — remember that only the motor vehicle's own wheels count. Also check whether a supplementary sign changes the prohibition; this is a common trap in questions about C4.
Did You Know?
The sign (C4) is often used to protect narrow streets, walking-speed areas, or sensitive environments by stopping car and truck traffic while allowing two-wheeled motor vehicles; supplementary signs make the signage flexible for local needs.
Frequently Asked Questions
Does the prohibition apply even if my vehicle has a trailer?
No, the prohibition is assessed based on the motor vehicle's own wheels. A trailer has its own wheels, so a motorcycle with a trailer is usually allowed if the motorcycle itself has two wheels.
I ride a motorcycle with a sidecar — is that allowed?
A sidecar gives the motor vehicle more than two wheels and is therefore normally covered by the prohibition. Three-wheeled motorcycles or trikes are generally prohibited.
Does the prohibition apply to buses and trucks?
Yes, buses and trucks generally have more than two wheels and are therefore covered by this prohibition unless an exception is indicated. Check whether a supplementary sign permits certain vehicle types.
May I park where the sign is placed if I am already inside the area?
The sign prohibits driving into the area with motor vehicles having more than two wheels; parking rules are governed separately and must be followed. If your vehicle is not allowed to drive in, you should in practice not park in the area if doing so would have required driving into the section beyond the sign.
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