The Importance of Speed Restrictions on Trains

Signals, timetables and speed restrictions are layered going from fastest to slowest. Every single EMT track in Tweedle-Dum was coded for a 1D speed - meaning you could flip a hand-throw switch and send a fully loaded train into an industry at 70 miles an hour. "I don't know why Burlington Northern Santa Fe just doesn't turn derailments off in the simulator," he says.