When must you stop for a train?

You must stop for a train when you see flashing lights or hear a train whistle because these signals are designed to alert drivers of an oncoming train. The presence of flashing lights indicates that a train is approaching and it is a legal requirement to stop at that point. This ensures not only your safety but also the safety of the train passengers. When the lights are activated or you hear the whistle, it is a clear sign that the train may be on the track ahead, and failing to stop could result in a serious accident.

While seeing the train itself may also necessitate stopping, relying solely on visibility could be dangerous since trains can approach quickly and without warning. Other vehicles being stopped is not a sufficient reason on its own, as the law requires you to stop regardless of the presence of other traffic. The option of stopping whenever you are unsure is not a reliable method, as safety regulations provide clear signals that indicate the requirement to stop. Understanding and recognizing these signals is crucial for ensuring safe interactions with train crossings.