The Shuttle Transport system is an interconnected railway in which most of the sites within PATHOS-II


(Upsilon, Lambda, Delta, Theta, Omicron, with the only exception of Tau and Phi which railways are to be constructed) are connected via a shuttle train. Simon Jarrett uses one of the trains to travel from Upsilon to Lambda, even though it crashes due to power failure.

Amy Azzaro tries to use one of the shuttles to go to Theta, but an unespecified accident happens, leaving her to be integrated with the WAU.