Fog is made up of tiny water droplets
suspended in the air that reduces visibility to less than 200 metres.
Fog has been statistically established to be the most dangerous driving
hazard in existence. U.T. Chandigarh, like the rest of northern India,
generally experiences fog in the cold winter months of December and
January. The motorists are advised to follow the tips listed out below
for driving in foggy conditions:
1. The safest thing to do is to not to drive. Call off the trip or
delay it until the fog lifts. Inform that you shall be late.
2. If you run into fog while driving, it is safest to move to the
left shoulder of the road and try to get your vehicle completely off
the road. Use your parking lights and hazard lights to indicate to
other drivers that you are parked on the side of the road. Do not
stop in the middle of the road.
3. If you choose to drive through the fog then reduce your speed.
As you enter fog, check your rear view for following vehicles and
slow down. The foot brake should be used lightly to let the brake
lights warn the following drivers. High intensity rear fog lights
(if installed) should be switched on.
4. A constant slow speed should be followed and the unconscious tendency
to speed up with apparent acclimatization to fog conditions should
be avoided. Also, fog creates a visual illusion of slow motion when
you may actually be driving fast. The driver must remember that fog
can be patchy and can change from a light mist to a thick blanket
in seconds. The faster your speed the less time available to react
to the danger.
5. Switch on your headlights even if it is day time and drive on low
beam. The high beam gets reflected off the fog and creates a ‘white
wall’ effect totally blinding the driver. The low beam shall
direct the light onto the road and help other drivers to see you.
6. Do not use your hazard lights while driving. Flashing lights distract
other drivers and they are known to drive into these lights on some
occasions. Don’t keep tapping on your brake pedals as the brake
lights will make the following drivers nervous and they may try overtaking
you. This would be a potential risk to all.
7. Use the left edge of the road as a guide rather than the center
line to avoid being dazzled by the headlights of the oncoming traffic
or getting involved in head-on collisions due to poor visibility.
8. Do not overtake vehicles. It is safer to follow other vehicles
while maintaining a safe distance. Avoid unnecessary lane changing.
9. Travel with the driver’s window partially open. Turn off
the car stereo and listen for traffic especially at intersections.
There may be other drivers who are not using their headlights.
10. Use your defroster and windshield wipers to keep the windscreen
and car windows clear. Do not hesitate to pull your car off the road
and to manually wipe the windows with a cloth if the wiper or defroster
is not working properly.
Preparing for Foggy Weather:
1. Make sure that all your lights are working properly and that
the head-lights are properly aimed. Clean the lights and replace
any fused bulbs.
2. Ensure that the wiper blades are not damaged and are working
properly. Be sure that you know the operation of the defroster by
consulting the manufacturer’s manual.
3. Keep a clean cotton cloth ready to wipe the windscreen if such
a need arises.

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