Which situation is appropriate for using emergency flashers?

Using emergency flashers is appropriate when a vehicle is stopped due to an emergency or when there is a risk to the safety of the vehicle and other road users. In the context of stopping due to mechanical failure, activating emergency flashers alerts other drivers that your vehicle is not operational and could pose a hazard, thereby improving safety.

When stopped in a lane of traffic to unload cargo, emergency flashers signal to surrounding vehicles that your vehicle is stationary and requires caution as they approach. This is critical in preventing accidents, especially in active traffic situations.

Driving uphill with a heavy load does not necessarily warrant the use of emergency flashers, as it is a normal driving condition and does not indicate an emergency or a need to signal to other drivers in the same way an unexpected stop does. Therefore, situations that involve stopping in traffic for unloading and stopping due to mechanical failure appropriately justify the use of emergency flashers to increase safety and awareness among other drivers on the road.