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Please someone,when it's windy and you're driving why do you have to slow down?
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Please someone,when it's windy and you're driving why do you have to slow down?

I was driving back across the M4 Second Severn Crossing Bridge early this morning,signs said slow down to 50 miles per hour.Is there an expert in vector analysis who could explain the theory(briefly)why slow speeds are safer in blustery conditions.Oh by the way, a tornado in Cwmbran would be more than welcome(better than that stupid bloomin' poodle).


    




QuiteNewHere
It is elementary, my dear Watson, as Mr Holmes would say.

You do not know what direction the blustery wind is blowing. When you are in full acceleration mode, your tires have the least amount of contact on the paved road.

Ergo ,, your vehicle can be hit squarely on the side by a crosswind and it can literally place you in the middle of the next lane or smack into the abutment or side of the bridge.

I have driven over bridges close to the Pacific coast where there are no signs similar to what you have noted and have felt the wind lift up my light weight vehicle seemingly from underneath. The loss of control, though momentary (split seconds) was scary .I have been so grateful that usually there are no other vehicles on the bridge with me.

Maybe you drive a heavy one ton or 2 ton vehicle and you feel that this rule doesnt apply to you, but if there were lightweights beside you, you might still end up in a big pile with them.

As for the blooming poodle, lol, That is something Id like to see.


pzratnog
Rating
thing logically about it. If you're going faster and your car gets blown, you'll have less time to react if you're going at higher speeds. Also it will be harder to correct yourself at higher speeds.


Skyline-Driver
Rating
the name you chose is ''stupid girl''

use some comon sence


alwaysoceanminded
Rating
Usually the faster you go the more lift under the car. Ever notice that indy cars have huge wings on the front and rear?? That is to keep the car glued to the pavement. The more lift the easier it is to flip.


godlykepower
Rating
Because of crosswinds.

When you drive above speeds of 90 km/h aerodynamic forces come into effect on the car, meaning that air passing over, under & around your car has an effect on its performance & handling.

On a windy day, cross winds can blow onto you and alter the way that air passing from the direction of travel holds your car to the road. ie it can blow your car off course because there is more wind from the sides than there is from the front, and your car is more aerodynamic from the front than from the side.


Bill H
High winds can make your car unstable. SO SLOW DOWN.


music_lovin_miss
Rating
i am not an expert, but if you are going fast and a gust of wind is making driving difficult, you are more likely to lose control and have / cause an accident.

when conditions are not normal, its better to be safe than sorry, and that means no speeding


SARA H
because the faster your car goes the less control you have, the less your reactions work and hence you will die! Itd oesnt take much to work out! x


songbird
Rating
Because when it's windy, if you lose control of your car, the wind could blow it off the road or into another car. :-s


anotherpainintheazz
I'm not an expert but it seems to me it is just to reduce wind resistance so as to not over turn your vehicle or blow you off the road.


zanoshi
probably because if your going fast and a big gust hits you, you would find it harder to control your car


brian c
Rating
because it will blow you off the road


monkeymanelvis
Rating
If there is an accident caused by the wind people will be able to respond better if they are going slower. If a lorry blows over for example it would be better to be going 50 and avoid it than hit it travelling at 70.


c.j.davies
The next time it says that on the M4 Severn crossing brdge and on the M4 Bridge between J41-J42 - you try goin 70mph+


jack jack
your car would seriously flip over..


?
this generly aplies to large tall vehecles the faster you go into wind causes the vehecles to sway


mannit m
like your name
says it all


chilly
You do?


therammid
Rating
im studyin applied mathetics at the moment and this example falls into wats called relative velocity. basically the faster you go the stronger the wind appears. if you stopped still the wind relative to you would be x...if you doubled your speed the speed of the wind would be 2x. an example is if you walk or run in the rain...if you run the same distance in the rain and you walk the same distanc you will in fact be wetter after running.


Bardic
Gives you more time to react and sort things out if the wind tries to blow you off course.

Bridges, like motorway embankments and the like are prone to wind problems - well, you know what I mean - due to being very exposed.

It's not a stupid question, if you didn't know you wouldn't ask.


jem
Rating
i think you have no common sense the reason that they make you slow down is that with the right speed and high wind you can lose control of you car you can even flip you car(if you go fast you can create lift in high winds)so be a safe driver and follow the sings because you not just putting you life in danger but other people life's too be safe and take care


mrfrijo
First you are on a bridge and think about this for a minute,the faster you go the easier It Is to get into and accident and as In an airplane they have a take off spead,If the wind blows your car It has less resistance when you are going slow then If you are going fast


CannisRedGlare
Rating
The faster you go the less time you have to react to hazards. The more hazards there are, the slower you should drive. Simple.


?
Rating
If you don,t the answer to this -- I would suggest you give up Driving - before you or someone else gets seriously Injured -- or worse


Diego Rivera
Rating
Gusty winds can flip your car over or make you loose control, so the faster you go the more likely these things are to happen


jesusanario
Rating
on a bridge, the wind and high speed might add to the stress on the bridge itself
and depending on what car you drive, you might have less control (I've got a baja beetle, very little steering control) so during high winds, my car sometimes goes off the road


I know, I know!!!!
well, the faster you drive, the less contact your tires have with the road. That of course means the wind can make your car swerve easier when you drive fast. So slow down when it is windy.


2 good 2 miss
Rating
If you really cant see why slowing down in bad wind with lorrys and caravans that can blow over easily then you should not be on the road if you are that thick.... sorry, you did ask... i guess no 10 points for me.


me
your name is very fitting





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