What must you do at a railway crossing with no signals or lights?

At a railway crossing with no signals or lights, it is crucial to slow down, look both ways, and proceed with caution. This action ensures that a driver is aware of approaching trains that may not be immediately visible. Trains can approach quickly and are often much quieter than expected, making it essential to actively check for any oncoming trains before crossing. Additionally, proceeding with caution allows the driver to react appropriately if a train is spotted, ensuring the safety of everyone in the vehicle and at the crossing.

The other choices reflect unsafe practices. Speeding up to cross quickly could lead to a dangerous situation if a train is approaching. Coming to a complete stop and waiting for a signal may be unnecessary, as the absence of signals indicates that the driver should actively check for trains instead. Ignoring the crossing if no train is visible undermines the importance of caution, as trains can appear suddenly. Therefore, the proper protocol is to slow down, check for trains, and then cross safely.