When I was working for UN in Bhutan there were lots of roads like this right up to the Tibet border.
As you can see the surface is pretty unstable and there is usually a bulldozer working somewhere along the way to keep the road open after the continuous rock falls. It is not uncommon to have to sit for a couple of hours while the dozer and a cast of thousands with picks and shovels with very casually used explosives clear a path from a larger slip.
Nobody in a vehicle would think to get out to move a rock unless it makes progress impossible, they just hang over the edge with half a tyre in space to get around. Unsurprisingly there are regular incidents of vehicles disappearing into space with their hapless passengers on their last journey.
Here is building an easy road
Just talk among yourselves until we get this sorted.
And some freestyle cutting
And if you have time this is a very interesting documentary about a drive in the HunzaValley.
