What must a motor vehicle's maximum speed, determined by its construction, be at least if you want to use this road?

The sign depicted is a blue rectangular sign indicating a "recommended speed limit" for vehicles on the road. In German traffic regulations, this sign often relates to specific speed limits for certain types of roads. The intention is to inform drivers about the minimum speed that must be maintained to ensure safe and efficient traffic flow.

For instance, if the speed limit is 61 km/h, it means vehicles must be able to travel at this speed to use this particular road safely. This is especially important on roads designed for faster traffic, as slower vehicles may cause hazards or disrupt the flow of traffic.

Understanding these regulations is crucial for maintaining safety and compliance while driving in Germany. Always ensure that your vehicle can reach the required speed limits for the road types you are traveling on.