When parked on the side of the road at night, what must you do to ensure safety?

To ensure safety when parked on the side of the road at night, turning on your 4-way emergency flashers is essential. This action makes your vehicle more visible to other drivers, alerting them that your vehicle is stationary and indicating that they should approach with caution. The flashing lights serve as a warning signal that can help prevent accidents, especially in low-light conditions where visibility can be compromised.

While other options may provide some level of caution or visibility, they do not offer the same level of immediate recognition that a vehicle is parked and potentially a hazard to passing drivers. The use of tail-lights, for example, is generally not enough to alert others in conditions of diminished visibility, and putting out warning devices is important but requires time and can expose the individual to risk if done without proper precautions. Remaining in the vehicle may provide some safety, but it does not assist in notifying other drivers of your presence.