Teton Pass runaway truck arrestor testing

[LittleLebowski]

[entropy]

Interesting.

In the aviation field, there is something called EMAS which is basically crushable pavement. It’s designed to prevent incidences where aircraft have departed the airport boundaries in overrun incidents. It’s exceedingly effective and has been installed at many airports where the traditional “overrun” area is non-exsitant. It’s also being installed at airports where space isn’t a concern.

I wonder if similar material isn’t too far away for vehicular use.

[Clusterfrack]

Awesome! I know that road well. That's a long stretch of steep 2 lane highway.

For passenger cars without brakes--at least around dusk--you could slow down by hitting elk lined up along the road.

[Seven_Sicks_Two]

Whoa. The only runaway truck ramps I can recall seeing were steep uphill grades covered in sand/gravel that use friction and gravity to slow a truck.

The arrestor cable method looks pretty intense.

[SecondsCount]

Whoa. The only runaway truck ramps I can recall seeing were steep uphill grades covered in sand/gravel that use friction and gravity to slow a truck.

The arrestor cable method looks pretty intense.

The sand/gravel method is dangerous. A friend is an OTR truck driver and said that quite a few truck drivers have died from using those. Hopefully the new way is better.

[JCN]

Wow!

[UNK]

My adolescent side can’t help but notice the videographers name in the credits.

[Snapshot]

Like a reverse slingshot. Stopshot?

I remember seeing (not using) one of the older style "inclined gravel" ramps around Pittburgh. There wasn't much to contain a vehicle using it laterally and I could imagine a truck losing control as it went up the ramp. The cement sides on this to contain the vehicle make it less likely to slew and roll.

[peterb]

What absorbs the energy in this system? What’s the brake?

Carrier arresting gear uses hydraulics that can be quickly reset. Is this similar or does it use a one-time element?

Edit: Found it! Page 7. One-time use, $90,000 per incident

https://www.codot.gov/programs/resea...-2018-20-2.pdf

[RoyGBiv]

Would likely decapitate a mid sized car.