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Incline - Roll Over Vehicle Accident

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Jun 25, 2022 - 9:07:16 PM
5923 posts since 12/20/2005

A couple of weeks ago I was driving down a 2 lane stretch of road in the middle of nowhere.
The area was low lying and the road itself was up pretty high, making for a high and steep incline on both sides.
Suddenly a car, coming my way, entered my lane, at about half a mile ahead.
Didn’t stay there but an instant but it sure got my attention. I slowed down a lot and watched him carefully till he was past me.
I’ve done considerable amount of off road driving, but If I had been forced to have to make a sudden turn, going down the incline, I think rolling over is almost inevitable. Unless I got really lucky and hit the bottom just right.
I’ve been thinking about this and even tried looking on the internet
I’m not sure what to think.

Jun 26, 2022 - 1:07:54 AM
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4290 posts since 4/22/2018

I do a fair amount of off road driving in 3 tonne heavily laden too heavy land rovers and small sbs/ATV as well as my own ford ranger pickup. Easier said than done, due to the heat of the moment etc, but if I was going to have to go off road in the situation you described, I’d want to be pointing straight down the slope rather than attempting to traverse it. Irrespective of what you were driving, it would probably be a tow truck/winch retrieval but by hitting it perpendicularly you stand far more chance of avoiding rolling it.

Jun 26, 2022 - 4:45:18 AM
Players Union Member

rinemb

USA

14733 posts since 5/24/2005

I made a living driving off-highway, sometimes 2-lane township blacktops, but mostly dirt, sand, or gravel. Nearly 50 years worth. The obstacles of danger encountered have been: cattle, deer, bridges out, reckless and bad drivers, tornadoes, etc. the last time I took the ditch was when vehicle trailer unhitched from the pickup pulling it and that trailer tumbled into my side of the sand road.
Now a lot of the area I am off highway is fairly flat, but some is not. I am knocking on wood as I say , I have been lucky so far. Brad

Jun 26, 2022 - 5:22:52 AM
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4290 posts since 4/22/2018

It always makes me chuckle that my truck has an inclinometer on the display. I know full well that if I’m ever in it and am wondering if I’m at the point of going over, my eyes certainly won’t be on the inclinometer!

Jun 26, 2022 - 6:08:56 AM

5923 posts since 12/20/2005

quote:
Originally posted by Wet Spaniel

I do a fair amount of off road driving in 3 tonne heavily laden too heavy land rovers and small sbs/ATV as well as my own ford ranger pickup. Easier said than done, due to the heat of the moment etc, but if I was going to have to go off road in the situation you described, I’d want to be pointing straight down the slope rather than attempting to traverse it. Irrespective of what you were driving, it would probably be a tow truck/winch retrieval but by hitting it perpendicularly you stand far more chance of avoiding rolling it.


I appreciate your response. And like you say, easier said than done.

 I'm still guessing, but I think getting into a 90 degree direction might be risky, at high speed. Lots of variables coming in to play, especially with what the conditions are present. 
I'm thinking what you want to avoid is having the front tire(s) dig in.

The more I think about it, I don't know if there is one single answer to this.

Edited by - Leslie R on 06/26/2022 06:15:13

Jun 26, 2022 - 6:25:14 AM

5923 posts since 12/20/2005

How about this:
As you are careening downhill, slowly turn your wheels uphill keeping your feet off of the brakes.
If you are going to hit bottom turn the wheels slightly facing the bottom at the last moment. Again keep feet off the brakes

Jun 26, 2022 - 7:32:25 AM

STUD

USA

36061 posts since 3/5/2008

Youse guys need to run a rock drill down a cliff...

Ther are moments when you could not..
Shove a ..Pin..up yer butt... :0/

Jun 26, 2022 - 7:45:32 AM
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4290 posts since 4/22/2018

quote:
Originally posted by Leslie R

How about this:
As you are careening downhill, slowly turn your wheels uphill keeping your feet off of the brakes.
If you are going to hit bottom turn the wheels slightly facing the bottom at the last moment. Again keep feet off the brakes


Really hard to advise as I'm sure the mental picture I have is different to what you were actually encountering.  Usually, anything done off road involving inclines is done slowly so an unplanned event like yours swims completely against the tide.  I would say that if you are careering down a slope, trying to turn uphill is a very bad idea as that would more than likely initiate a roll - i'd be getting my wheels pointing as down hill as much as I could.  I'm assuming you're driving an automatic?  if you are, you cab use the brakes due to the lack of engine braking you can utilise in a manual, but you'd want to be left foot braking and keeping the wheels moving by using your right on the gas at the same time - it feels very alien, and you will be heavy footed at first.  try it next time you are in a parking lot or somewhere similar.

Jun 26, 2022 - 8:45:55 AM
Players Union Member

banjo bill-e

Tuvalu

12359 posts since 2/22/2007

I don't think that there is much that can be done if you veer off at any speed on a steep slope. If you were going to turn your wheels uphill you would also need to hit the gas and break the rear wheels free to spin the back end around so you are facing a bit more uphill. That was taught at an off-road driving course, (at slow speed and with a jeep) to prevent a rollover on a steep hill,. You really don't want to tumble over and over. A layover is much better than a tumble. But whether anything could work would be very dependent on the situation, the terrain, how steep and how far down and what is waiting at the bottom!

Jun 26, 2022 - 11:57:53 AM

5923 posts since 12/20/2005

I have an uncle who is a Hollywood stunt driver. I’m going to be asking him about this a little bit later today.

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Jun 26, 2022 - 12:33:44 PM
Players Union Member

rinemb

USA

14733 posts since 5/24/2005

quote:
Originally posted by STUD

Youse guys need to run a rock drill down a cliff...

Ther are moments when you could not..
Shove a ..Pin..up yer butt... :0/


surprise

Jun 26, 2022 - 12:38 PM

5923 posts since 12/20/2005

Spoke with my uncle.
His area of expertise was actually making cars roll over, not the reverse.
Can take weeks of planning.
Possibilities of endless variables make it very difficult to come up with one specific course of action.
I would like to somehow put this scenario on some kind of simulator.
Not certain I can make that happen but it’s worth a try.

Jun 26, 2022 - 1:30:03 PM
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csrat

USA

1152 posts since 9/14/2008

quote:
Originally posted by STUD

Youse guys need to run a rock drill down a cliff...

Ther are moments when you could not..
Shove a ..Pin..up yer butt... :0/


My family used to mine coal in SE Kentucky and W Virginia. When I was a kid I'd go down and sometimes do a little work with them.

On one occasion, I headed out with my cousin Bill to a site where we weren't mining coal, but had the contract to haul gob* from a processing station set between two mines operating in adjacent mountains. We dumped the gob into a holler between the two mountains, literally making one mountain out of two. 

Bill had us both climb into an enormous dump truck called the M40. By climb, I mean literally climb a ladder attached to a truck that could haul forty tons. We took on a load and headed up the very steep, rather narrow incline that ran along the side of one of the mountains, on a road made of previously dumped gob. One ride up, dumped the load, then back down, before Bill put me in the driver's seat. 

Bill had showed me the brake pressure indicators and how to engage the retarder before starting the trip down. If the retarder doesn't engage, do not start down the incline. I asked him what to do if one of the brake indicators dropped. He told me if one of the indicators drops, ease the truck into the cliff, to scrape it along the rock face, to bring it to a stop. I then asked him what to do if both the brake indicators dropped. He said, "Well, you see the cord for the horn there over your head? Pull that until it breaks, so the horn gets stuck on, then jump."

Going up the incline was slow and tense. That turbo charged truck would roar as it creeped up with a forty ton load, on a road of gravel and cinders laid over gob and if it rained it was mighty slick. The real pucker was coming back down, the retarder whining, watching the guages and indicators, maneuvering around trucks on their way up. Heck, my truck wasn't even the biggest truck on the site! After a few days on that job, I could'a cracked walnuts between my cheeks!

 

   *Gob is what you had after washing the coal in a tumble rinse of water and chemicals. A gray, lumpy, viscous sludge of rock and dirt that was slippery but at the same time hard to get off of anything it touched.

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