Positive Train Control (PTC) is a communications and signalling system that has been identified by the National Transportation Safety Board (NTSB) as a technolo

Human errors, as well as deliberate sabotage, pose a considerable danger to passengers riding on the modern railways and have created disastrous consequences. T

Contents: (1) Intro.; (2) What is High Speed Rail (HSR)?; (3) HSR Options; (4) Components of a HSR System: Conventional HSR; Track; Signal and Commun. Networks;