quote:The technology treadmill is moving too quickly nowadays to group so many "generations" of trains in this 45-year period. I don't know what the correct cut-off years would be offhand, but we should probably put MPC into its own era, followed by LTI, then trains made in Korea (TMCC-era?), followed by trains made in China (present-day Legacy?).
For more precision, people often do use more specific terms like "MPC","LTI" and "LLC".
It seems to me that some folks already do define train eras by the type of control, or where the trains are made.
It would be helpful to have these terms defined and published. It would probably take a group like the TCA, LCCA, or OGR to make it happen. Even so, with todays informal, free flowing peer to peer communications, it would be tough to make it stick.
This really does make a lot of sense to me. Probably why it won't happen? There have been SO many changes I actually don't see why it hasn't been addressed already. 
Maybe someone is asleep at the switch? Or maybe it just doesn't matter anymore? Who knows, but I really do think it's way over due.
