What is the purpose of an emergency flasher system in vehicles?

The purpose of an emergency flasher system in vehicles is to alert others when the car is disabled on the highway. This system activates all turn signals simultaneously, making the vehicle more visible to other drivers and indicating that the driver may be in a precarious situation. When a vehicle is stationary due to a breakdown or other emergency, using the flasher system helps ensure the safety of both the driver and other road users by signaling that there is a potential hazard.

The other options focus on signaling intent to other drivers, such as lane changes or turns, which are typically indicated using standard turn signals rather than emergency flashers. Furthermore, while driving in foggy conditions does require precautions, emergency flashers are not primarily designed to prevent accidents in those scenarios but rather to signify that a vehicle is not moving or is in trouble.