What does this traffic sign indicate?

The sign depicts an LPG (liquefied petroleum gas) filling station. In Germany, traffic signs for fuel stations are standardized to help drivers identify the type of fuel available. The blue background and the LPG lettering indicate that this station specifically caters to vehicles powered by liquefied petroleum gas.

When answering related questions, it's important to identify not just the general category of fuel stations (like gas or hydrogen), but also recognize specific types to ensure you understand the variety of energy sources available for vehicles. This knowledge is crucial for drivers relying on alternative fuels.