If you are working with a flat deck platform.....maybe. (Edit, thought about it...NEVER ! )
However with open grid construction having scenery formers in place covered with hard shell and vegetation, or even with foam and terrain finished......a sick game IMO.
However, major modifications of the build plan during the construction process it's self, that can be a challenging adventure.
Due to the protracted process of building my own RR the extra time gave rise to variations which expanded widths, added peninsulas, carved out several staging yards, poked holes in perfectly good drywall. spliced in layout sections from other pikes, repurposed knee walls, stole space from a woodshop, sliced out an access aisle, moved water heater, relocated electrical service, relocated plumbing, etc, etc. None of which was in view at the start.
Chopping into perfectly good, finished scenery, hah! Forgedabotit! I'll be lucky to get scenery even started in my lifetime. I can run trains on track and subroadbed, Can't run trains on foam or plaster.
