How quick can a HGV stop?

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  • How quick can a HGV stop?
  • Premier Icon jam bo
    Subscriber

    [video]https://m.youtube.com/watch?v=rHwDegptbI4[/video]

    http://www.bbc.co.uk/news/av/world-europe-41964366/dashcam-captures-truck-s-near-miss-with-child-in-norway

    Pretty quick it would seem!!!!

    sharkbait
    Member

    Monumental brakes on those things and great reaction from the driver …. I suspect it wasn’t fully loaded though.

    Premier Icon Flaperon
    Subscriber

    Could be autonomous braking if it’s a Volvo?

    shifter
    Member

    US system would’ve been better there.

    Premier Icon seosamh77
    Subscriber

    I’d think that would have been a different story if filled to the gunnels, i’m guessing it’s empty?

    Premier Icon woody2000
    Subscriber

    Oof, lucky boy(?) Could’ve been a different story in less than perfect conditions, wet road etc. No sign of a lock up or anything there, pretty undramatic in the end!

    legend
    Member

    shifter – Member

    US system would’ve been better there.

    Not crossing the road behind the bus would’ve been better

    whitestone
    Member

    I’m assuming that by “US system” Shifter means that vehicles have to stop while a school bus is loading/unloading?

    When I was learning to drive I was taught that you should slow down whenever a bus is loading/unloading in case someone decides to run out from the blind side.

    Except in the US, half their trucks are still running around with drum brakes on the trailers…

    The truck stopped in its own length, perhaps going a bit quick for passing a bus but at least the driver was paying attention. Wouldn’t say it was going particularly fast…

    johndoh
    Member

    pretty undramatic in the end!

    It will have been pretty dramatic in the lad’s pants :-O

    Premier Icon footflaps
    Subscriber

    If it was the UK, about 6 cars would have piled into the back of the truck, all on the phone oblivious to what was going on…

    Mister P
    Member

    Judging by how closely HGVs tailgate on the motorway I’d assume they can stop almost instantly.

    In Norway they have presumed liability and an absolute right of way for pedestrians, so this kind of thing isn’t all that uncommon. My cousins were genuinely surprised by having to look both ways and wait for gaps in traffic, in Norway they’d just step out.

    Premier Icon seosamh77
    Subscriber

    hisisnotaspoon – Member
    In Norway they have presumed liability and an absolute right of way for pedestrians, so this kind of thing isn’t all that uncommon. My cousins were genuinely surprised by having to look both ways and wait for gaps in traffic, in Norway they’d just step out.

    surely that can’t apply to 60mph roads?

    When I was learning to drive I was taught that you should use plain common sense, I slow down whenever a bus is loading/unloading in case someone decides to run out from the blind side.

    FTFY

    Not a dig at you btw

    Jamie
    Member

    Oooh. I reckon 5 pages, and it turning out several STW’ers are Lewis Hamilton.

    Bream
    Member

    Bloody lucky kid there, driver reaction and road conditions saved his life, almost perfect ? conditions. A split second driver delay or had it been wet then it would have been a different sad story.

    whitestone
    Member

    @TheArtist… The problem with common sense is that it isn’t particularly common 😉

    Premier Icon footflaps
    Subscriber

    Oooh. I reckon 5 pages, and it turning out several STW’ers are Lewis Hamilton Surfmatt.

    FIFY

    He may have only have a 1.2 litre Jetta, with clip on plastic wheel trims over the steel wheels, but he was the greatest driver STW has ever seen…

    Premier Icon geoffj
    Subscriber

    but he was the greatest driver STW has ever seen…

    Glupton was a close second though

    Premier Icon Northwind
    Subscriber

    People keep saying “don’t cross behind the bus” or “wait til the bus pulls away” but he just ran across the road, it doesn’t matter what the bus is doing or where it is if you just plan to sprint into traffic.

    In brexit britain, we’ll have the power to drag him back and throw him under the wheels

    Premier Icon franksinatra
    Subscriber

    There was a video doing the rounds a while ago showing Volvo automatic braking system. It was properly remarkable.

    Premier Icon footflaps
    Subscriber

    In brexit britain, we’ll have the power to drag him back and throw him under the wheels

    In brexit Britain the truck companies will have got the law changed so they don’t need such European liberal restrictions as brakes and traffic regulations and can just run over whatever they like in the name of capitalism…

    In brexit britain, we’ll have the power to drag him back and throw him under the wheels

    And rightly so, if he’s a handwringing leftie. Or an immigrant

    Premier Icon martinhutch
    Subscriber

    Good job the kid knew how to run Prometheus style.

    sbob
    Member

    footflaps – Member

    In brexit Britain the truck companies will have got the law changed so they don’t need such European liberal restrictions as brakes and traffic regulations and can just run over whatever they like in the name of capitalism…

    …back to what we had before we “harmonized” with the EU, with lighter loads meaning decreased stopping distances and less damage to our roads.
    😈

    avdave2
    Member

    On the seafront at Brighton at the cafe and golf course at Roedean is a pedestrian crossing. It first went in in the late 70’s after one of my classmates walked out in front of the bus he’d just got of as his family at the time ran the cafe and the pitch and putt course and he lived there. I can’t honestly remember now if Mark was 12 or just 13 at the time but I still never forget his death every time I go around or past a stationary bus.

    Premier Icon jam bo
    Subscriber

    I nearly did it in Vietnam, a few beers in, looked the wrong way, stepped into the road, mate grabbed the back of shirt and hauled me back towards the pavement.. side of a bus skimmed past my face.

    The design rate torque for truck brakes is massive. Its more of an example of good tyre and ABS design.

    Volvo emergency braking

    [video]https://youtu.be/ridS396W2BY[/video]

    wwpaddler
    Member

    surely that can’t apply to 60mph roads

    There are no 60mph roads in Norway. They’re all less than 50mph unless motorway.

    plyphon
    Member

    Unrelated but this video came up in the ‘related videos’ section. Some sights in here I tell thee

    [video]https://www.youtube.com/watch?v=-BE476MvO_g[/video]

    Premier Icon Northwind
    Subscriber

    jam bo – Member

    I nearly did it in Vietnam, a few beers in, looked the wrong way, stepped into the road, mate grabbed the back of shirt and hauled me back towards the pavement.. side of a bus skimmed past my face.

    I leaped over a fence into the side of a moving transit once, that stang.

    Premier Icon geoffj
    Subscriber

    Their trucks are better than their cars

    [video]https://youtu.be/aNi17YLnZpg[/video]

    maxtorque
    Member

    The limiting factor for trucks is the concrete tyres they use, due to having to carry a massive normal load and operators wanting them to last for ages (relatively speaking) Modern high performance cars can generate a much higher average g force during braking thanks to high silica content tyres, especially in the wet

    (in that video, the truck is i recon doing only about 30mph at the point it starts to brake)

    Premier Icon deadkenny
    Subscriber

    Back in my day we had scary safety adverts on TV telling kids the dangers of stuff like this.

    Should put them in the middle of videos on Facebook instead of the annoying mid-video adverts they currently have.

    Another lucky driver

    [video]https://www.youtube.com/watch?v=P-giC24SxwE[/video]

    redthunder
    Member

    I also had a friend at primary school back in the 70’s, when he stepped out from behind an ice cream van. He did’t make it 🙁

    Buses, ice cream vans etc. Always make me remember and puts me on high alert.

    Premier Icon benp1
    Subscriber

    Just seen that HGV video, very impressive

    spooky_b329 – Member
    Except in the US, half their trucks are still running around with drum brakes on the trailers…

    No different to the UK. Most still run with drum brakes on trailers, in fact some operators are going back to drums as the disc brakes suffer badly from corrosion and seize up. Secondhand trailers are advertised as having drum brakes as a selling point.

    sbob – Member

    …back to what we had before we “harmonized” with the EU, with lighter loads meaning decreased stopping distances and less damage to our roads.

    Also meaning more HGVs on the road and increased transport costs that would be passed on to the customer. Some European countries run at 60 tonnes rather than our 44 tonnes.

    Premier Icon footflaps
    Subscriber

    I thought drums was better than disc (on trucks) as you can have more surface area to dissipate the heat…

    TheDTs
    Member

    Most trailers I have seen have drums on. Tractor units on the other hand disks front drums on the rear AFAIK.

    TheDTs
    Member

    Must have been pretty scary in the cab, stopping that quickly.
    I was shunting an unloaded Volvo FH tractor unit earlier today.
    Step on the brakes and the whole cab rocks forward, it’s nothing but glass in front of you and it feels quite exposed..

    cbike
    Member

    School Buses, in fact any bus and children – proceed with extreme caution. Even my sensible chum was killed at school. Driver was doing 35 in a 30 limit.

    Every surface street should be 20 mph.

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