I ask because my work decided to use rail to remove limestone (used in our circulating fluidized bed boilers). The motive power we decided to use is a Trackmobile. I get the biggest kick out of seeing it operate, especially when it lifts itself off the track and onto the road (at a railroad crossing, or where track and pavement are level) and drives off on the road.
Though I can't duplicate that operation, I could approximate the same operation via the use of SuperStreets to connect one spur with another on the other side of the layout. So I would like to know how the Trackmobile would operate on SuperStreets.