What should a driver do when their vehicle is stopped on a roadway?

Activating hazard warning signals is crucial when a vehicle is stopped on a roadway. This action alerts other drivers that there is a potential obstruction ahead, which can help prevent accidents and ensure the safety of everyone on the road. Hazard lights indicate that the vehicle is not in regular operation, making it clear to approaching traffic that care should be taken. This is especially important in scenarios where the vehicle is stopped on the side of the road or in situations of emergency.

While turning off all lights might seem reasonable, it could actually make the vehicle less visible to other drivers, especially in low light conditions. Leaving the engine running can pose safety risks such as carbon monoxide buildup, and it can also waste fuel. Lastly, leaving the vehicle immediately could lead to dangerous situations, especially if traffic is busy around the vehicle; it's important for the driver to remain with the vehicle unless it is safe to exit. Therefore, activating hazard warning signals is the best practice to maintain safety on the roadway when a vehicle is stopped.