"Oren" wrote in message
...

Some places out west have _Runaway truck ramp_ (s)

"A runaway truck ramp, runaway truck lane, escape lane, emergency
escape ramp or truck arrester bed is a traffic device that enables
vehicles that are having braking problems to safely stop. It is
typically a long, sand or gravel-filled lane adjacent to a road with a
steep down-hill grade, and is designed to accommodate large trucks.
The deep filling allows the truck's momentum to be dissipated in a
controlled and relatively harmless way, allowing the operator to stop
it safely."

Sample pic:

https://upload.wikimedia.org/wikipedia/commons/1/11/A7-Notbremsweg.jpg

There are some mountain roads in North Carolina that have run away stops
similar to that. Lots of soft dirt (sand) off the road.