What do you have to be aware of when you see this traffic sign combination?

The triangular sign with a train symbol is a warning sign indicating that there is a rail crossing ahead without barriers. The plate below it with three red stripes means the crossing is approximately 240 meters away. Each stripe marks about 80 meters from the crossing.

Additionally, the traffic rule about no overtaking in this area is important because rail crossings can be dangerous. Preventing overtaking reduces the risk of accidents near the crossing. So you need to be aware both of the upcoming rail crossing at 240 meters and the prohibition of overtaking to drive safely in this area.

In short, the sign combination warns you early about the crossing and controls overtaking for safety.