Way back when in the 70's I was called to cover a work train out of North White Plains NY. The train consisted of a flat with a backhoe assigned to fix a drainage ditch just south of White Plains. Since it was just a few miles down the road the work crew foreman said the backhoe didn't need to be tied down. On the way the backhoe hit the platform in North White and fell on the 3rd rail and shorted out the system. The work order was canceled but the next day I was back there again and this time I noticed it was secured with some ratchet tie downs. I thought I'd try to model the flat.