Which vehicles are not allowed to use a road sign-posted like this?

The traffic sign you see indicates that bicycles are not allowed on that road. According to German traffic regulations, this specific prohibition means that cyclists must find an alternative route.

It's essential to adhere to this rule to ensure safety on roadways designated for other vehicles and to prevent accidents. Not following the sign can lead to fines for cyclists and could also pose risks to both cyclists and drivers.

Understanding such signs helps ensure compliance with road regulations and promotes safe usage of roadways by all types of vehicles.