All freight movements over Britain's rail network are monitored and controlled by an advanced computer-based system known as TOPS (Total Operations Processing System). The film follows the progress of a wagon load of equipment from Truro to the Midlands and shows how TOPS makes it possible to accommodate a last minute change of plan.

• DirectorKen Fairbairn
• Release1 January 1978
• GenreDocumentary
• Duration0h 19m
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• Revenue?
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• Productions

  British Transport Films