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TRUST (Train Running Under System TOPS) is a Network Rail computer system used for monitoring the progress of trains and tracking delays on Great Britain's rail network.[1] It compares actual train movement events with those planned, allowing delays to be recorded with explanations as to the cause allowing the operation of an incentive scheme to reduce delays.[2]
TRUST is used to record when a train passes a measuring point, which can be used to identify delays, and the cause of the delays.[3] It is based on the TOPS mainframe-based computer system. [4]
TRUST data is part of Network Rail's open data feed and is used by Realtime Trains as a source for train movements and cancellations.[5] A similar computer system is Darwin, from the Rail Delivery Group.[6]