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Driving In Fog

Updated: 5 days ago



Red Rear Fog Lights


Driving in fog can be especially challenging because visibility is limited, and if you can't see where you're going it doesn't matter how good of a driver you are.


Driving Is Like The Movie Final Destination; Expect Anything


Rain and moisture tend to absorb any extra light produced by fog lights, so what good are they actually? A red rear fog light reveals the position of your vehicle to drivers behind you, when driving in conditions that limit visibility.



Your tail lights are dim, so they are not as likely to be seen in foggy weather, and factory front fog lights don’t do much other than light the area in front of your vehicle, which is already lit by your headlights. A red rear fog light can be mounted on the side of a vehicle to help it be more visible to other drivers when they are passing it.


Taillights Make It Easier For Other Drivers To See You



Regulations in most of the world permit vehicles to be equipped with one or two rear fog lights. If only one rear fog is equipped, it must be on the driver’s side of the vehicle. Having two is legal, but makes it much more difficult for drivers following you to see your brake lights.



Proper Usage of Rear Fog Lamps


You should always use your low beam headlights in the fog and turn on your red rear fog light if your vehicle is equipped with one. If the vehicle doesn't have a red rear fog light, flashing your brake lights periodically by applying the brakes, will assist motorists behind you in seeing you in heavier fog.



The reason you don't use your high beam headlights in the fog is because the moisture from the fog will reflect the light back at you. When conditions are clear, your high beam headlights will be more useful compared to conditions of poor visibility.



Driving In Fog


Below is an example of one type of collision that can happen in heavy fog conditions. In this case the vehicle that was rear ended was the last vehicle in a stopped line of traffic. The truck approached from behind and rear ended the truck which then sandwiched it into the vehicle in front of it. Always leave extra room between your vehicle and the vehicle in front of you to avoid getting sandwiched, which would be a double impact.



Driving in the rain


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