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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, which is publicly-available to encourage innovation in customer information both inside and outside the railway industry. Such data is used by various websites and companies as a source for train movements and cancellations in a variety of applications. A similar computer system is Darwin, from the Rail Delivery Group. [5]