What does this traffic sign combination indicate?

This traffic sign indicates that you are approaching a railway crossing. The triangular shape with the image of a train signifies that drivers should reduce speed and be prepared to stop, as trains may be crossing the road ahead.

The sign's effectiveness comes from its clear visual warning, reminding drivers to remain vigilant and look for additional signs, barriers, or signals that indicate when it is safe to cross. It's crucial to observe all related traffic regulations and signals as not doing so could result in serious accidents. Always expect the possibility of a train, even if you cannot see the tracks immediately.