It is a special traffic light before a level crossing. Stop before the crossing and don’t proceed for as long as the light is flashing

What is the meaning of the following traffic light (intermittently flashing red light)?

1. Prepare to stop before the intersection with the traffic lights.
2. Correct answer: It is a special traffic light before a level crossing. Stop before the crossing and don’t proceed for as long as the light is flashing.
3. Stop before the intersection with the traffic lights.
4. Drive faster before the crossing.