What does this traffic sign indicate?

The traffic sign indicating "35" refers to the minimum speed limit. In German traffic regulations, this sign indicates that vehicles must drive at least 35 km/h. It's important for drivers to understand that failing to adhere to minimum speed limits can create unsafe driving conditions, especially on faster roads where slower vehicles might impede traffic flow.

The presence of this sign emphasizes the need for maintaining a minimum pace to ensure safety and efficiency on roads designed for higher speeds.