What does this traffic sign mean?

This traffic sign indicates that there are existing overhead electrical wires. It's crucial to be cautious in these areas, as the presence of electrical wires poses a risk to vehicles, especially taller ones.

1. **Overhead Electrical Wires:** Drivers should be aware of the height of their vehicles and avoid using areas where wires are present to prevent accidents or injuries.

2. **Rail Traffic Priority:** While this sign specifically shows overhead wires, it’s often encountered near railways. Rail traffic typically has priority under German traffic laws, meaning that vehicles should yield to trains or trams.

3. **Waiting for Rail Vehicles:** When rail traffic is approaching, it’s essential to stop and wait, as trains are unable to stop quickly.

Understanding this sign helps ensure safety around electric rail systems and promotes compliance with traffic regulations designed to protect both drivers and rail operators.