With which vehicles are you not allowed to drive on a road sign-posted like this?

This traffic sign indicates a length restriction for vehicles, specifically prohibiting vehicles longer than 10 meters from driving beyond this point. According to German traffic rules, any vehicle or combination of vehicles that exceeds the length shown on the sign is not allowed.

In this case:
- A car with a caravan trailer totaling 11 meters exceeds the 10-meter limit and is therefore not allowed.
- A tractor with a trailer totaling 12 meters also exceeds the limit and is prohibited.
- A truck with a total length of 9 meters does not exceed the limit and is allowed to proceed.

This rule helps prevent very long vehicles from driving on roads that are not suitable for their length, such as narrow streets or places with tight turns. It's important to always check the length of your vehicle and trailer combination to comply with these signs.