I've practically spent the last quarter of 2021 on the arched concourse that can be seen through the archway in the last image. As I said at the beginning of this thread, the real N.Y. Penn Station concourse was an elaborate waiting room for travelers using the stairways to the trains in basement tunnels.
Great architecture but I wanted something more along the line of what the Pennsylvania Railroad built in Pittsburgh, a large train shed.
Basically a structure built to accommodate multiple, entire passenger trains. But I couldn't imagine the amount of my time and computer RAM it would take to model that intricate array of beams and girders so I decided to go with a complete fantasy design of riveted box arches.
This design means far fewer patches and the rivets and stamped patterns can be faked using normal maps.
And here's a short camera move shooting inside, near a painfully under-modeled lounge/observation car which is here mostly to give a sense of the scale of the building.
walk_thru_00.mp4
I'm beginning to get the feeling that I may never get to the end of the line on this project but I'm having a blast during the trip.