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Drive on low beam in fog
H. Kishie Singh
For fog lights to function properly, the lens has to be yellow
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January has been
one of the coldest months with fog and rain thrown in to make
driving a really hazardous experience. Fog and rain reduce
visibility, sometimes to 20 metres, which means that you cannot
see more than two car lengths ahead of you.
Cold temperatures
will fog up the windscreen and the glass area of the car on the
inside, further reducing visibility in all directions. A
dangerous situation for the drivers and passengers and any other
road user.
The other day
while driving to Delhi the wipers were on for almost most of the
drive. There were Mercedes, Audis and other expensive cars on
the road, which were completely misted up on the inside. They
made a very sad statement. People owning these expensive and
exclusive cars have not read the owner’s manual.
They have luxury
cars but do not travel in luxury. They were also travelling in
unsafe cars. Poor visibility due to fog plus misted up windows
mean swimming underwater with eyes closed. Keeping the glass
area clear is simple. Press the right buttons, twiddle a few
knobs and hey presto. The cabin is warm and comfortable and the
glass area clear.
None of the cars
had their headlights on. An important factor while driving in
poor visibility is to see, which means a clear windscreen and be
seen. This will happen only if you keep your headlights on.
Headlights must, repeat must, be on low beam. High beam is
detrimental. It hits the cloud of fog, which consists of very
fine particles of water suspended in air. The high beam
light hits this fog and bounces right back, blinding the driver.
It also is a bother to the approaching car, reducing the
visibility of the other driver.
No one on the road
that day had reduced their speed. Visibility is reduced, wet
roads increase braking distance, collisions are imminent. There
was a pile-up of 17 cars on the Noida flyover that day. The
reasons are obvious. Poor visibility and high speeds.
Most manufacturers
these days have a set of lights on the bumper. They refer to
them as fog lights. They are not fog lights. For fog lights to
function properly — to increase visibility in foggy conditions
— the lens has to be yellow. The wavelength of yellow allows
it to cut through the fog and travel a long distance. The colour
red has the longest wavelength. This is the reason all important
and urgent messaging lights are red.
Brake lights, red
lights at traffic crossings or blinking red lights — all
signal danger, and caution must be observed. Since red can be
seen from a distance, the driver gets the longest possible
reaction time to take appropriate action. Yellow or amber comes
a close second, which is why at traffic junctions, blinking
lights at crossings and indicators on cars, yellow is the choice
of colour, signalling caution. Green follows with the third
wavelength and signals go.
It is a simple
matter to give yourself a set of fog lights. The orange wrapping
paper used by halwais, if put across your lights, will
convert your driving lights into fog lights. Remove them in the
spring.
Over the years,
psychologically we have come to associate red with danger,
yellow or amber with caution and green as a "proceed"
colour.
There seems to be
some confusion in the minds of Indian drivers. A number of
drivers and riders today go zooming through red lights. Red
means stop. One of the most dangerous and foolhardy moves for a
driver or mobike rider is to drive through a red light. The
right of way is for the other road user, and a bus or truck may
be coming against you. In a car in case of an accident, you will
get serious injuries. A biker does not stand a chance if hit by
a bus or truck, or even a speeding car.
As a western
observer commented: " An Indian has a maddening habit of
always choosing the course of action which will do the maximum
damage to his own interests. He will cut off his nose to spite
his face and regard such an operation as a triumph of cosmetic
surgery."
He could be
describing one of you.
Happy motoring.
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