The sign "Exit from other roads outside the highway in white" indicates that there is an exit available for vehicles coming from other roads, leading off of the main highway. This sign serves to inform drivers that they can leave the highway at this point.

In Germany, this type of sign is typically used to guide drivers who may be traveling on secondary roads towards the highway or in areas where they can access accessible routes. The white background signifies that it is a general informational sign.

Understanding this sign is important for navigation, particularly in unfamiliar areas, as it aids in planning your route and shows where you can safely exit the highway to reach your destination.

If you have any more questions about German traffic rules or need clarification on other traffic signs, feel free to ask!