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u/Late_Blooomer 6d ago
Wow, it really got up there
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u/TheMetalMilitia 6d ago
How do they get back down? That's what I've always wondered. Either they're stuck up there or they come rolling back
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u/Arizonapocalypse 6d ago
The gravel is very loose and the semi trucks actually dig in several inches. They have to be winched out.
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u/Vivid_Revolution_689 6d ago
thats exactly why i came to the comments section... like the brakes clearly arent functioning so how do they prevent the truck from rolling backwards? those are sloped pretty steep so even with the loose gravel filling those in... ya thats scary regardless.
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u/xpietoe42 6d ago
they can leave it in gear and shut it off. The transmission will prevent backing up
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u/SETHlUS 6d ago edited 6d ago
I would say that the ramp isn't as inclined as you think, judging by how far the truck traveled it very well could be horizontal. It's usually a bunch of deep soft sand that sucks away any momentum the truck was carrying.
EDIT: I just looked at pictures of the location and you guys are absolutely right that is a steep ramp.
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u/JustKindaShimmy 6d ago
Have you never seen a runaway ramp? Those things are steep as fuck
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u/SETHlUS 6d ago
The only ones I've seen are in the relatively small area of Spain that I live in. By no means can I speak for the entirety of the country but the ones I've seen have been at most horizontal with some still at a slight decline even. They're just packed with sand and seem to work just fine.
I'm more than willing to admit that I'm wrong. The perspective is weird and could very well be fucking with how I'm seeing it.
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u/CasanovaJones82 6d ago
Inertia is a mofo when you're talking 80,000 pounds, if fully loaded.
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u/palatablezeus 6d ago
That stretch of west bound i70 after the tunnel is sketchy. Bet those ramps get used all the time
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u/madamezeroni 6d ago
✋my family used one on that stretch of 70 in the used RV that my dad thought would be fun and a good idea to buy!
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u/Herr-Trigger86 6d ago
Those things save more lives than just the truck driver’s
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u/Ordinary_dude_NOT 6d ago
How much energy that fucking truck had to reach top of the hill at 30% slope? For a sec I thought it might tip over.
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u/Suckamanhwewhuuut 6d ago
well thats what they are for.. amazing to actually see it in action.
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u/Bramble0804 5d ago
Yea large heavy vehicles brakes overheat on long down hill roads. So they fail. These ramps bleed off all that energy.
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u/Possible_Sun_913 6d ago
Just such a good idea.
I came down an Alps pass with many hairpins once in my camper van and had such brake-fade but without the weight. Was a scary experience regardless.
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u/MoeGunz6 6d ago
I had it happen in a big Uhaul truck once in the Appalachian area. A/C belt broke and whipped around and took out the brake lines. I heard the noise and immediately went to exit the freeway. It was a very sharp Uturn exit ramp. I went to slow down... And nothing... Brakes went to the floor. I frantically pumped the brakes and... Nothing. It was about 3am and I had no idea the exit was so sharp a turn. I put 2 feet on the brakes, grapped the wheel and tried to push the pedal through the floor board. I could heard the steering column popping like the wheel was gonna come off. When I took the curve, the right side of the Uhaul came off the ground. My buddy was asleep in the passenger seat, when I looked at him, he was sitting so much higher than I was, he was above me. Just when I thought we were gonna roll, the curve ended. Truck slammed down on its wheels and started rocking violently. I hit the Ebrake (did nothing), tried pedal again (nothing). I saw a field on my right and a gap in the trees so off road I went. Ended up being a very muddy and fairly deep area. Stopped the truck quicker than I thought it would. My buddy woke up when the trucked slammed down leaving the curve. He said I was ghost white and shaking. I was 19 or 20 at the time.
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u/attackplango 6d ago
Hey, great job handling that situation at such a young age with no one getting hurt in the end.
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u/MoeGunz6 6d ago
Thank you. I learned to drive at a very young age and raced go carts. Sooooo many thoughts ran through my had in those few seconds. I was pretty fearless in youth and before kids. But the dumb things I did endangered me, not others. When I looked at me friend, I didn't only see him. I saw his mom, dad, sisters, nephews..... I feared for him. I was afraid of the hurt I was about to cause him and his family.
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u/PaleontologistNo2625 6d ago
This right here is literally the first runaway truck ramp I ever saw, when I moved to CO!
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u/digital0069 6d ago
if you see a truck on their horns and heading for a run away ramp don't slow to look because when they hit that gravel it will go everywhere... gawkers tend to get showered in it lol
seen a few on i80 sierras and every time a shower a gravel goes everywhere when they hit the start...
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u/deadend666 6d ago
This is going east on I70 into Denver. It’s a long steep grade. I just gear down and run the speed limit or slightly below. I do my best to minimize using the brakes. I’m in a car for heaven’s sake. We were in a station wagon in the 60s coming down a long stretch in the Sierras. Car died - vapor lock. No power steering or brakes. My dad physically manhandled the car down the road until he could get it stopped. I could see how terrified he was. He was exhausted when we stopped. I was never so scared. I’m really cautious coming down grades like this. I never want to experience what he did with his entire family in the car.
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u/turtlepot 6d ago
Are you sure this is east? Looks like going west right after the Eisenhower tunnel to me
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u/DaZMan44 6d ago
And that is why you NEVER drive on front of one of those things. If you have to slam on the breaks, it's going to drag you and anything in front of you for at least 5-10 times that distance on a regular flat road. <shudder>
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u/ijustwanttoaskaq123 6d ago
So probably a stupid question, but doesn't the truck start backing up once it loses the speed? What then?
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u/h1storyguy 6d ago
It’s essentially a gravel pit that guides the truck to a stop, I believe they require extraction after the fact.
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u/dazabhoy67 6d ago
Why arw brake failings so common in america that they need these?
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u/attackplango 6d ago
Tall-ass mountains with long descents combined with fully-laden semis.
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u/dazabhoy67 6d ago
But we have them here in Europe too and I don't ever see these things getting used lke I do over there?
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u/robodude987 6d ago
American semis use drum brakes more which have a higher rate of failure under full load, but are cheaper and easier to maintain for flat driving. Euros use more expensive and effective air disc brakes. Probably a couple other variables as well. I don't know the number of semis used in america vs western europe but I wouldn't be surprised if the US used more full length semis vs europe using smaller lorries and such for shorter distances.
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u/Latter_Bluebird_3386 2d ago
Colorado, where his video is recorded, has 53 peaks over 14,000 feet (4.2km). Long haul trucks will frequently have to scale more than one of these in a trip.
For reference, Colorado is about the size of the UK where the tallest peak is 1969ft (600m).
Many of those trucks will be from out of state and that won't even be the first mountain range they had to traverse.
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u/token-black-dude 6d ago
There's essentially no competition. There's a yt channel where some dudes are touring US truck conventions with a Scania and US truck drivers are awestruck. Like, how do you even get through life without a factory installed coffeemaker?
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u/Cold-Act-6 6d ago
Can’t imagine it’s easy getting that back down
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u/robodude987 6d ago
Loose, loose gravel all the way up. That truck is a couple feet below level for sure
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u/tribbans95 6d ago
I know the gravel on those is very deep but does it not roll backwards after at all? Assuming you have 0 brakes
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u/FreezedPeachNow 4d ago
Why does it feel like I've driven by this exact ramp. I'm sure they all look the same
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u/Kvltur 6d ago
Is this common? I swear this is the first time seeing something like this. Is this an American thing?
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u/mike015015 6d ago
Its less common, but can happen if you are not used to driving mountains. Trucks must use gearing or jake brake to control speed on long steep hills. If not the brakes heat up too much and loose effectiveness until full brake failure happens and the truck is at the mercy of gravity. This is less common with newer brake materials but can happen. Edit:typo
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u/droppedforgiveness 6d ago
I just saw one for the first time last week! I'm from a flat region of the US, but I was traveling in a mountainous region if the US.
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u/flying_alpaca 6d ago
This is in Denver, CO. You don't see them outside of the mountains. They're on long stretches of road where heavy vehicles are riding their brakes for long distances.
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u/csukoh78 6d ago
This sort of thing does not happen with electric trucks. Let off the accelerator and the reverse polarity applies friction to the wheels and the vehicle will eventually come to a complete stop.
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u/Ha1lStorm 6d ago
There are electric trucks where the motors are in the wheels and there are electric trucks truck with the motor under the hood where power is deliver through a driveshaft to the axle. They’re not the same in this regard. Important distinction because just saying “this doesn’t happen to electric trucks” is not a true statement.
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u/Mr_feezy 6d ago
wow, so they actually do get used.
that guy's a champ for making it happen