09-30-2009, 08:46 AM
Quote:Is it all one big loop (so only one train at a time can run on autopilot), or is it two independent loops (so two trains can run on autopilot at the same time) ?It's one loop, a dogbone folded to make a double-track main. Note how the end loops in the mountain area are single track.
I believe this layout is an example of what John Armstrong called "the riata". Dogbone folded into a double-track main, large yard on a wye. In fact, it might be the first example I've seen of someone actually planning one.
Fan of late and early Conrail... also 40s-50s PRR, 70s ATSF, BN and SP, 70s-80s eastern CN, pre-merger-era UP, heavy electric operations in general, dieselized narrow gauge, era 3/4 DB and DR, EFVM and Brazilian railroads in general... too many to list!