What should you do if you encounter a level crossing; the barriers are up, and no trains appear to be coming, but the red lights are still flashing?

When encountering a level crossing where the barriers are up, yet the red lights are still flashing, the appropriate action is to stop and wait. The flashing red lights indicate that the crossing is still active, and it is unsafe to proceed. Trains can approach unexpectedly, and the lights serve as a critical warning to prevent collisions.

Even if the barriers are raised and there appears to be no immediate danger, the flashing red signals mean that a train may be approaching or the system is in a state requiring caution. Therefore, stopping and waiting is the safest choice, ensuring that you have clear visibility and confirmation that it is safe before proceeding. This action prioritizes safety not just for the driver, but also for any passengers and surrounding road users.

The other responses suggest actions that could potentially lead to dangerous situations, such as ignoring the warning indicators or attempting to rush through the crossing. In the context of road safety, always adhering to the signaling systems at level crossings is essential.