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Thread: bus questions

  1. #1
    Senior Community Member stephie1012's Avatar
    Join Date
    Feb 2008
    New Jersey

    bus questions

    i know being on the school bus is safe. im getting alot of grief about it from my family tho, mostly my little brother. Im having a hard time explaining why its safe. anyone want to help? i tried to explain compartmentalization (gah did i spell that right?). but he wants to know what happens in a roll over and the kids slide off the seats?
    I guess i should be happy that my family is so onboard with all of our carseat decisions, but all the questions are making me 2nd guess it lol

    Oh and the only school bus dd was on had lap belts for the kids. i cringed when she told me. Obviously she followed rules and wore it, but are they safe?

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  3. #2
    CPS Technician Ninetales's Avatar
    Join Date
    Oct 2009
    I can't imagine what kind of collision would cause a bus to roll over. A semi maybe? They're just so big that it's hard to damage them - they pretty much always "win".

    Also they are held to some amazing federal standards. You should look at the FMVS for buses - it's huge. They are designed to be very safe.

  4. #3
    CPS Technician Pixels's Avatar
    Join Date
    Oct 2008
    Worcester county, MA

    Re: bus questions

    Yes, in a rollover or side impact, without seat belts, compartmentalization doesn't do much. Those type of impacts are rare, and some other safety features of the bus still help. With a lap belt, the child will stay on the seat and still be protected.

    Some school bus safety features:
    School bus yellow. It's actually a regulated color. School buses have to be that color, and no other vehicles are allowed to be that color. It's the color that is easiest to see, making buses highly visible and therefore less likely to be hit.

    High up. Buses place the passengers high, raising them above the point of impact in all but a few potential scenarios.

    Mass. Ever hear "the most lug nuts wins?" The vehicle with more mass generally fares much better in a collision.

    A very strong frame. Check this picture out: (scroll down).

    Now we come to compartmentalization. The seats on a bus are a certain distance apart. They are not allowed to be more than a certain distance so that they back of the seat in front will catch the passenger quickly. At the moment of impact, the bus and passenger are moving at the same speed in the same direction. During the impact, the front crumple zone does its thing, gradually slowing the bus. The passenger keeps moving at pre-crash speed until the passenger impacts the back of the seat in front. Because the seats are close together, the bus has only slowed a little bit in the time it takes for the passenger to impact. If the space was too large, then the bus would slow down more and the passenger would hit the seat a lot harder. Those seats are padded and designed to give a certain amount to absorb crash force.

    The body of the bus is not actually rigidly attached to the frame of the bus. This also lets some of the energy dissipate. I thought it was really cool when I learned about it in tech class. The body basically sits on these two long rails that run the length of the bus. The body is held on with a few U-bolts, so it's attached but not. In a frontal impact, the body will slide forward on those rails.

    Then there's just plain statistics. Kids are eight times more likely to be killed riding to/from school in their parents' vehicle than on the bus. Kids are more likely to be killed between their house and getting on the bus (walking to and waiting at the bus stop) than they are on the bus. School buses are just so very, very safe.
    Last edited by Pixels; 07-16-2011 at 10:32 AM.
    Melissa, CPST and Mom to three

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  6. #4
    CPS Technician luckyclov's Avatar
    Join Date
    Jun 2010
    Who wants to know?

    Re: bus questions

    Yeah, everything Pixels so very well said.

    I used to *insist* on transporting my kids to/from school. Then I actually sat down and spent a few hours researching statistics, regulations, engineering of school buses. My kids now ride the bus. They're safer. MUCH safer. Even without a child restraint. Even without a seatbelt (mine don't even wear a lap belt). There's really no disputing it.

    And, now...I can't get, "the wheels on the bus go round and round...round and round..." out of my head.
    CPST & Mom to:
    Keep (11 yrs old, 57", 80 lbs), in an Olli, Ozzi & BB
    Sass (10 yrs old, 54", 76 lbs), in Santa Fe, Monterey & Olli
    Zilla (4 yrs old, 38", 36 lbs), FF in a PS, RXT & FR85
    Rollin' in a 2014 Ody, 2012 F-150 SuperCrew & Luigi, a peppy little 2012 Fiat 500

  7. #5
    Senior Community Member stephie1012's Avatar
    Join Date
    Feb 2008
    New Jersey

    Re: bus questions

    thank you sooo much!! i really appreciate it and it helps settle my fears.

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