The sign you referred to, segmented pre-signs outside of highways, indicates the upcoming presence of a significant regulatory sign for drivers approaching the highway. These pre-signs are designed to prepare drivers for what to expect ahead, ensuring that they have adequate time to react and comply with the regulations they will soon encounter.

In Germany, these pre-signs are typically found before major traffic signs such as speed limits, lane restrictions, or other important directives. They help improve safety by alerting drivers of changes in traffic conditions or rules, allowing them to adjust their driving behavior appropriately.

If you have specific questions about these signs or any other traffic rules, feel free to ask!