When will your total hours of driving exceed your total hours of sleep?

Discussion in 'Experienced Truckers' Advice' started by Powell-Peralta, Mar 10, 2010.

  1. Powell-Peralta

    Powell-Peralta Road Train Member

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    This just came to me---because i was reading something about b-52's because i was reading something abou the kilmer rouge because i yahoo news said something about cambodia preserving the kilmer rouge sites for tourism so i clicked on it.


    Anyways, if we ASSume that a person will get their CDL at age 23---this means the person has slept average 8 hours a day for 23 years, so 8x365=2920 hours x 23 yrs=67160 hours.

    If we assume that you can drive 70hrs per week (i know you can't but let's go with that for right now), how long will it take for your total hours of driving to exceed your total number of hours of sleep keeping in mind the 67160 hours will continue to increase day by day by 8 hours.

    Can someone come up with a mathematical formula to run this?

    i don't have time myself right now.
     
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  2. The Challenger

    The Challenger Kinghunter

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    After the first year. I know as your driving hours has to be greater than what you sleep if you keep moving. Exhibit A) If I drive sixty 50hour weeks and I sleep 8 hours day for those 350 days then I have driven 3500 hours and slept for 2800. Subtract the two and you get 700 hours.

    Sleep time x days = total hours slept

    drive time x days = total hours driven

    total hours driven - total hours slept= difference

    If you sleep more than drive, do it the reverse way.

    Hope this helps,
    KH
     
    Last edited: Mar 10, 2010
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  3. Powell-Peralta

    Powell-Peralta Road Train Member

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    So anyways, my latest run was about 900 miles so i had time to think about it; Yes, i thought about it for probably 200 miles or so.

    1) i don't think under the current HOS rules it is possible to exceed the total number of hours you've slept vs. the total number of hours you've ever driven.

    i came to the conclusion because the max number of hours you can drive, i think, in 7 days before you run out of 70hrs is 61. i am basing this on a conservative estimate of 1/4 hour for pre trip, 1/4 hour post trip and then 1 hr per day for unloading or unloading; i know that you proabably will not unload or load EVERYDAY, but i'm going by averages. So, 1.5 hours on duty everyday plus 11 hours driving is 12.5. After 5 days, this will total 62.5 hours. There would only be 6 hours available to drive before running up against the 70 max hours per week rule. If we wait for hours to appear, this means that we will only have 6 hours for the next day......

    Actually, screw it......i can't figure it out now. Will return to it later. Unless someone else wants to give it a crack.
     
  4. Ruges

    Ruges Light Load Member

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    King posted what you where looking for. although his math was a bit off.
    At 50 hours driving per week. thats 2,400 hours a year worth of driving.
    At 8 hours of sleep per night. Thats 2,920 hours a year worth of sleep.
    under that situation, your hours driving will never excede your hours sleeping.
    However lets say you where a super driver. And you could get in 60 hours a week worth of driving. That would be 2,880 hours a year worth of driving. Now say you only sleep 6 hours a night, that would be 2,190 hours of sleep in a year. A difference of 690 hours per year. And with sleep already having 67,160 hours banked. It would take 98 years of driving, to excede your hours of sleep. So you would have to drive till you where 121 years old.

    Not lets just say you where a driver, Jump in the truck and go, and managed 70 hours per week. 3,360 hours a year worth of driving. With only 5 hours of sleep a night. 1,825 hours of sleep per year. A difference of 1,535 more hours driving per year then sleeping. That would take you 44 years of drving to have more hours loged driving then sleeping. You would then be 67 years old. Now during that time you would have accumulated around 8.8 million miles. Hopfully your body will have held out threw all that abuse to what should amount to a very nice retirment fund.
     
  5. Powell-Peralta

    Powell-Peralta Road Train Member

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    Yeah, i think if you really did exceed your total hours you've ever slept by the total number of driving hours, you can legitimitely call yourself a trucker.:biggrin_25519:

    Just for fun i came up with a formula that i think is right---i took algebra and calculus in hs and college and i still don't know the difference between the two; Now that's sad.

    Anyways, just for fun, let's say that you drove "off the books"/didn't follow HOS rules and you drove 11 hours everday disregarding the 70max per week rule (which is very possible, violations of law notwithstanding) then:

    11x = 67160 + 8x

    11x-8x = 67160 + 8x-8x

    3x = 67160

    x = 22,386.66666 hours, 2.7 yrs to equal the 67160 already banked?

    i don't think this is right, need helpo.


    i did it on paper not using an equation and i think it would take about 67 yrs to exceed it. Basically, i calculated that every 10 yrs you sleep 29200 hours based on 8 a night avg and if you drove 11 hours a day everyday, it would be 40150 every 10 yrs and i just added to the bases.

    2) 12hrs a day---still possible and you could even be home often depending on your routing.

    47 yrs.

    3) 13 hrs a day---still very possible.

    37 yrs.

    4) 14 hours a day still technically possible.

    30-32 yrs.

    5) 15 hours a day. This would be the practical limit because there are only 24 hours a day and you need to eat and go to the bathroom.

    Under 26 yrs.
    i think at that point you could call yourself a trucker.
     
  6. JustSonny

    JustSonny Big Dummy

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    Remember those word problems where Train A leaves the station at 0800 and travels at 60mph, then Train B leaves the station at 0900 and travels at 62mph? How long will it take Train B to catch up to Train A? Sound like that kind of problem to me. Train A, in this scenario, is "sleeping" at a rate of 8hrs/day and will continue to do so. Plus, Train A has a 67,160 hr headstart. Train B is "sleeping" at a rate of 10hrs/day and will continue to do so until until it makes up for the 67,160 hr difference. I dunno?

    Maybe this.....use something similar to the F/C degree conversions, except set up the equation in the same way you would if you were trying to find at what temp a Fahrenheit thermometer would read the same as a centigrade thermometer. Set the conversion factors equal to each other. Again, I dunno?

    Then for more just plain excitement: Try to prove your answer with the point/slope formula. Yehaw!
     
  7. Powell-Peralta

    Powell-Peralta Road Train Member

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    Can anyone provide a formula for this problem/question?
     
  8. tinytim

    tinytim Road Train Member

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    If we ASSume this really is important to you we will make it simple.

    Driving 70 hours a week and sleeping 56 hours a week means you are driving 14 more hours per week than sleeping. 67160 ÷ 14 = 4797.15 4797.15 weeks ÷ 52 weeks per year means you will have to keep this schedule up until partway through your 106th year to have your driving time exceed your sleep time.
     
  9. dale love

    dale love Bobtail Member

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    Are you sure bout all that?
     
  10. Hammer166

    Hammer166 Crusty Information Officer

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    Your formula is correct, you just screwed up units. 'x' is in days, not hours. 67 years, if you drive 3 more hours than you sleep.