TRUST

{{Short description|Computer system for tracking trains}}

{{about|a train monitoring system||Trust (disambiguation)}}

{{More citations needed|date=June 2017}}

{{Use dmy dates|date=August 2017}}

{{Use British English|date=August 2017}}

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.{{Cite web|url=https://safety.networkrail.co.uk/jargon-buster/trust/|title=Trust {{!}} Safety Central|website=safety.networkrail.co.uk|date=19 May 2016 |access-date=2018-12-16}} 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.{{Cite web|url=https://cdn.networkrail.co.uk/wp-content/uploads/2016/11/Catalogue-of-Railway-Code-Systems.pdf|title=Network Rail Catalogue of Railway Code Systems|date=2015-10-30|page=12|access-date=2018-12-16|archive-url=https://web.archive.org/web/20181216210944/https://cdn.networkrail.co.uk/wp-content/uploads/2016/11/Catalogue-of-Railway-Code-Systems.pdf|archive-date=2018-12-16}}

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.{{cite web |author1=Rail Delivery Group |title=Delay Attribution Review |url=https://www.orr.gov.uk/sites/default/files/2020-09/rdg-delay-attribution-review-report-2020-09-28.pdf |website=ORR |access-date=7 August 2022 |date=2020}} It is based on the TOPS mainframe-based computer system. {{cite journal |last1=Gwynne |first1=Robert |title=A long engagement: railways, data and the information age |journal=Science Museum Group Journal |date=2021 |volume=16 |issue=16 |doi=10.15180/211603 |url=http://journal.sciencemuseum.ac.uk/browse/issue-16/a-long-engagement/ |access-date=7 August 2022 |language=en |issn=2054-5770|doi-access=free }}

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.{{cite web |title=TRUST vs Darwin - Open Rail Data Wiki |url=https://wiki.openraildata.com/index.php?title=TRUST_vs_Darwin |website=wiki.openraildata.com |access-date=7 August 2022}}