When an accident or road worker happens, you have a truck that has a shelter there behind so if any car or truck were driving on the truck, almost all power takes up as the protection takes up the power.
I might have an Idea on how to make them. Take the adjustable tire script, put it into a box shape, with actuators on the end connected to the truck, and then 'deflate' the nodes to about 20-25%
I have no Idea how to do that, I just turned a K700 onto its side, and rammed Burnsides into its tires at different pressures
I was in talks with ThatsNice a while ago about just this. A flexbody would be the best way to do it. You just need a deformable NB and mesh with some command beams and shocks.