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Thread: A driving safety message

  1. #1
    Senior Member Koffee_Kosmo's Avatar
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    A driving safety message

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    My sister sent me this email
    She works in insurance and passed it on to me as a safety precaution

    NEVER KNEW THIS BEFORE

    I wonder how many people know about this?

    A 36-year-old female had an accident several weeks ago and totalled her
    car. A resident of Wollongong , NSW, she was travelling between
    Wollongong and Sydney . It was raining, though not excessively, when her
    car suddenly began to hydroplane and literally flew through the air.

    She was not seriously injured but very stunned at the sudden occurrence!

    When she explained to the policeman what had happened, he told her
    something that every driver should know -
    NEVER DRIVE IN THE RAIN WITH YOUR CRUISE CONTROL ON.

    She had thought she was being cautious by setting the cruise control and
    maintaining a safe consistent speed in the rain, but the policeman told
    her that if the cruise control is on and your car begins to hydroplane -
    when your tyres lose contact with the pavement, your car will accelerate
    to a higher rate of speed and you take off like an
    airplane. She told the policeman that was exactly what had occurred.

    The policeman estimated her car was actually travelling through the air
    at 10 to 15 kms per hour faster than the speed set on the cruise
    control. The policeman said this warning should be listed, on the
    drivers seat sun-visor -
    NEVER USE THE CRUISE CONTROL WHEN THE ROAD IS WET OR ICY - along with
    the airbag warning. We tell our teenagers to set the cruise control and
    drive a safe speed but we dont tell them to use the cruise control only
    when the road is dry.

    The only person the accident victim found who knew this (besides the
    policeman), was a man who had had a similar accident, totalled his car

    I hope by reading this

    You might save a life.

    KK

  2. #2
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    Re: A driving safety message

    http://www.hoax-slayer.com/cruise-control-warning.html

    Commentary:
    This email forward warns that drivers should not use cruise control in the rain. The message claims that using cruise control can actually cause the vehicle to accelerate through the air if it hits standing water and hydroplanes (aquaplanes).

    While the core claim (dont use cruise control in wet conditions) is valid, the message seriously mangles the facts and is therefore misleading and overly alarmist.

    ........................

  3. #3
    Senior Member flynnaus's Avatar
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    Re: A driving safety message

    Always verify anything received on the Internet KK

    http://www.hoax-slayer.com/cruise-control-warning.html

    However, the claim in the message that cruise control itself can actually make the vehicle accelerate and fly through the air in a hydroplaning situation is dubious at best. A CarPoint Australia article that debunks the claims in the email notes:

    This is the key that makes a nonsense of the email. Modern cars take their speedo reading from the driveshaft or transmission. This means the cruise control bases its responses on the speed of the driven wheels, not the car itself. This is an important distinction and fail safe position.

    If the driven wheels skid because they lose grip, the spinning wheels will cause the speedo to show a higher reading which will force the cruise control to release the throttle faster than most drivers. Regardless of whether the car itself slows down or speeds up, the cruise control will always reduce the throttle no matter what until the driven wheels slow down back to the pre-set speed.

    If the wheels continue to slip under this scenario, this will always leave the car travelling more slowly relative to the road, not faster as described in the email.

  4. #4
    Senior Member Koffee_Kosmo's Avatar
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    Re: A driving safety message

    Thaks lads
    I dont have cruise control

    And should I reprimand my sister ?? :D

    KK

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    Senior Member flynnaus's Avatar
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    Re: A driving safety message

    Big sister or little sister? ;)

  6. #6
    Senior Member Koffee_Kosmo's Avatar
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    Re: A driving safety message

    Quote Originally Posted by 757F6A7D7D726660130 link=1284007797/4#4 date=1284008990
    Big sister or little sister? *;)
    Younger than me but the one in middle

    I sent her an email with the links noted (above) just now to have a read

    KK

  7. #7
    TC
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    Re: A driving safety message

    Quote Originally Posted by 515B4E5959564244370 link=1284007797/4#4 date=1284008990
    Big sister or little sister? *;)
    I have heard this story before. Modern cars have ABS/stability controls.

    I think you will find that cruise control or no cruise control, a slip is detected and managed by the software and hardware of the car.

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    Re: A driving safety message

    True or false I think this is really interesting... I mean, leaving unpredictable conditions up to the speed limiting of a mechanical device just adds one more variable to go wrong :s

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    Re: A driving safety message

    and then there is the story on the guy (P plater) driving near the Gold Coast (Sth of Brisbane), whose cruise control stuffed up leaving him cruising at 80km/hr with no way of turning it off. He even rang Ford service and they suggested bringing it in.... he explained the problem with that! I think he ended up crashing, but was fine.

  10. #10
    Senior Member Yelta's Avatar
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    Re: A driving safety message

    Quote Originally Posted by 4B49404C1717210 link=1284007797/8#8 date=1284026144
    and then there is the story on the guy (P plater) driving near the Gold Coast (Sth of Brisbane), whose cruise control stuffed up leaving him cruising at 80km/hr with no way of turning it off. He even rang Ford service and they suggested bringing it in.... he explained the problem with that! I think he ended up crashing, but was fine.
    Melbourne 2009 http://www.news.com.au/breaking-news/freeway-driver-stuck-in-80kmh-cruise-control/story-e6frfku0-1225810719113

  11. #11
    Sleep is overrated Thundergod's Avatar
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    Re: A driving safety message

    My son and I had a discussion about this to discuss the technical aspects and came to the same conclusions as the articles pointed too.

    We both understand the mechanics of cruise control and the physics of aquaplaning.

    However, it has got me thinking.

    2mcm mentions modern cars and ABS. Good point.

    However, my 2000 model manual Astra has cruise control but no ABS.
    I have made a mental note not to use cruise control in the wet for reasons I understand but hadnt thought about before now.

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    Re: A driving safety message

    Quote Originally Posted by 66646D613A3A0C0 link=1284007797/8#8 date=1284026144
    and then there is the story on the guy (P plater) driving near the Gold Coast (Sth of Brisbane), whose cruise control stuffed up leaving him cruising at 80km/hr with no way of turning it off. He even rang Ford service and they suggested bringing it in.... he explained the problem with that! I think he ended up crashing, but was fine.

    I heard this story, cruise control does not stop you turning the car off (instead of just cruise control), or taking it out of gear. I just sat there shaking my head listening to that story on the radio.

  13. #13
    Sleep is overrated Thundergod's Avatar
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    Re: A driving safety message

    Turning the car off can cause problems and should only be done, IMO, in certain circumstances like the recent spate of jammed throttles on Toyotas in the U.S.A.
    If you turn off the motor you lose power assistance to the brakes.
    If you turn the key too far you lock the steering wheel.

    Taking it out of gear means you lose one form of control over the car.

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    Re: A driving safety message

    Quote Originally Posted by 1E3A333330300A1E3A26383A550 link=1284007797/0#0 date=1284007797
    when your tyres lose contact with the pavement, your car will accelerate to a higher rate of speed and you take off like an airplane.... The policeman estimated her car was actually travelling through the air at 10 to 15 kms per hour faster than the speed set on the cruise control.
    Ive had this emailed to me before and was kind of amused by the statement that your car accelerates and flies through the air like an airplane after losing traction. *mustve activated the afterburner or something... always wondered what that button was... :D
    I love cruise control - use it everywhere, all the time (my drive to work is 90km each way). *The only problem is it highlights other peoples failure to maintain a constant speed - one of my coupla thousand pet driving hates...

    Quote Originally Posted by 3F3D34386363550 link=1284007797/8#8 date=1284026144
    then there is the story on the guy (P plater) driving near the Gold Coast (Sth of Brisbane), whose cruise control stuffed up leaving him cruising at 80km/hr with no way of turning it off. He even rang Ford service and they suggested bringing it in.... he explained the problem with that! I think he ended up crashing, but was fine. *
    I remember hearing about this and found it a bit sus... *apparently he claimed that he was unable to take the car out of gear or turn it off... so multiple separate mechanical systems all failed at the same time??? *unlikely. *
    Ive had a stuck throttle before -its a bit disconcerting but as soon as youre on a relatively straight bit of road just turn off the car and jump on the brakes - sure theyre much less effective without power assistance but it beats being stuck in cruise control waiting to crash...

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    Senior Member Koffee_Kosmo's Avatar
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    Re: A driving safety message

    Quote Originally Posted by 6D41415E4B5C18177D2E0 link=1284007797/13#13 date=1284080239
    The only problem is it highlights other peoples failure to maintain a constant speed - one of my coupla thousand pet driving hates...
    As part of my job most of my driving is at night
    My pet hate is headlights not adjusted correctly
    To check your lights -
    When parked behind a car & on a level road your light beam should not be over the bumper bar of the car in front of you

    KK

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    Senior Member trentski's Avatar
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    Re: A driving safety message

    Quote Originally Posted by 143838273225616E04570 link=1284007797/13#13 date=1284080239
    I remember hearing about this and found it a bit sus... *apparently he claimed that he was unable to take the car out of gear or turn it off... so multiple separate mechanical systems all failed at the same time??? *unlikely. *
    They had several experts look over the car and couldnt find anything wrong with it :-?

  17. #17
    Senior Member Koffee_Kosmo's Avatar
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    Re: A driving safety message

    Quote Originally Posted by 4543545F45425A58310 link=1284007797/15#15 date=1284081354
    They had several experts look over the car and couldnt find anything wrong with it
    Insurance fraud :-?

    KK

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    Super Moderator Javaphile's Avatar
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    Re: A driving safety message

    Quote Originally Posted by 06222B2B28281206223E20224D0 link=1284007797/14#14 date=1284080975
    To check your lights -
    When parked behind a car & on a level road your light beam should not be over the bumper bar of the car in front of you
    Like so much else in life the answer to this is, "It depends!". The statement as-is is incomplete. For it to be accurate and have any meaning it would have to say: When parked behind a car & on a level road your light beam should not be over the bumper bar of the car parked X meters in front of you.

    In order to adjust your lights using the bumper of a car in front of you you would have to be a certain distance away from that bumper/car. Simply saying your lights shouldnt be above the bumper of a car in front of you is inaccurate. Being that most lights are mounted above the bumper and that the height of the front and rear bumpers on cars are the same. Clearly if you were very close to the car in front of you your lights will be above its bumper even when they are properly adjusted. If they werent then theyd be useless to you as theyd only illuminate the road a meter or so ahead of you.


    Java "Details matter!" phile

  19. #19
    Senior Member Koffee_Kosmo's Avatar
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    Re: A driving safety message

    Quote Originally Posted by 5B7067706179787D74110 link=1284007797/17#17 date=1284086903
    Like so much else in life the answer to this is, "It depends!". The statement as-is is incomplete. For it to be accurate and have any meaning it would have to say: When parked behind a car & on a level road your light beam should not be over the bumper bar of the car parked X meters in front of you.

    In order to adjust your lights using the bumper of a car in front of you you would have to be a certain distance away from that bumper/car. Simply saying your lights shouldnt be above the bumper of a car in front of you is inaccurate. Being that most lights are mounted above the bumper and that the height of the front and rear bumpers on cars are the same. Clearly if you were very close to the car in front of you your lights will be above its bumper even when they are properly adjusted. If they werent then theyd be useless to you as theyd only illuminate the road a meter or so ahead of you.

    I mentioned this as a rough guide to use as a quick visual check while driving

    I generally see in most cases just one light that is misaligned (this could also happen after a car to car tingle ;D)

    So if one sees a head light misalignment they should have them adjusted properly on the next scheduled service with the light check/adjustment board

    When I worked for a Ford dealership I adjusted headlights on all pre delivered cars & it was also standard to check again on the first service (a free one) excluding parts

    KK



  20. #20
    Mal Dimal's Avatar
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    Re: A driving safety message

    Pretty sure the law requires that headlights on Low-Beam should not be higher than xx.x cms above the ground along with all the other provisos already mentioned.

    I cant remember what the exact figures are but we got pulled up a few years ago during a cross-country jaunt (QLD to WA) whereupon the local coppers (Ceduna) pulled out a tape measure and proceeded to measure how our lights were adjusted; High-Beam and Low-Beam..... We were OK as it happened....

    Mal.

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    Re: A driving safety message

    Quote Originally Posted by 757278741B0 link=1284007797/1#1 date=1284008388
    http://www.hoax-slayer.com/cruise-control-warning.html

    Commentary:
    This email forward warns that drivers should not use cruise control in the rain. The message claims that using cruise control can actually cause the vehicle to accelerate through the air if it hits standing water and hydroplanes (aquaplanes).

    While the core claim (dont use cruise control in wet conditions) is valid, the message seriously mangles the facts and is therefore misleading and overly alarmist.

    ........................
    life is pricious so if have to take of ourslef and take healthy precautions!!!!



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