Train control system. The process by which the movement of a train is influenced without any action by the driver. For the purposes of this specification, reference to the train control system also encompasses automatic train protection, automatic train operation and in-cab signalling.
Traffic Control System. Automatic information system for support of the Central Inspector (Ref. CI) on railway lines with heavy traffic, which enables the monitoring of the traffic on an entire railway line, in real time.
Trusted Computer System. A system that employs sufficient hardware and software integrity measures to allow its use for simultaneous secure processing of information having differing security classifications.
erminal apture ystem - the process in which transactions are stored in the terminal until the batch is settled to the host. Most often used in restaurant applications where tip adjustments need to be made.