After getting the pavement extended for Global 3, work has begun on constructing the check-in and check-out structures.  While visiting family in Chicago suburbs, I was able to get away for a morning to head over to Rochelle and click some pictures of the prototype.  I also did some research via truckers YouTube videos on entering and existing intermodal yards.  Satellite photos were also very helpful. Here are a few of the pictures of Global 3 from the ground and from space.
It took a lot of trigonometry and the use of a hip roof calculator, but I was able to get the hip roof calculated and cut out.  I first used card stock to test the fit before cutting out the plastic for the final assembly. I used some left over pieces from a micro engineering engine house kit for the standing seam roof.  The prototype is five lanes wide, but I reduced the size for a four lane unit.
Here are some more photos.