Which traffic sign refers to the actual mass?

The signs shown are related to weight restrictions for vehicles on the road.

The first sign, which indicates "5.5t," specifies a maximum permitted weight of 5.5 tons. This means that vehicles exceeding this weight are not allowed to enter or use that part of the roadway. It is essential for ensuring road safety and preventing damage to road infrastructure.

The second sign refers specifically to trucks, indicating that this area is restricted to certain types of vehicles, usually prohibiting heavy-duty trucks regardless of their weight class.

Understanding these signs is crucial for following traffic laws and maintaining the safety of the road users and the road itself. It's important to recognize that both signs serve to regulate vehicle types and weights to prevent potential issues on the roads.