THE GOLDEN SPANNERS 2019 A RETURN TO IMPROVEMENT

WITH A RECORD NUMBER OF NEW TRAINS DUE TO ENTER SERVICE IN 2020, ROGER FORD CONSIDERS THE IMPACT OF RELIABILITY ON PERFORMANCE

Just how much does rolling stock reliability matter? Matter, as in affecting service performance. There is a school of thought, promoted by highly experienced and capable engineers with fleets towards the lower end of the reliability ratings table, that once you get to around 15,000 Miles per Technical Incident (MTIN), rolling stock reliability is no longer a major factor in the Public Performance Measure (PPM). However on an increasingly congested network, with dwell times under pressure and PPM, with its five or 10 minutes windows, now replaced by right time, the potential disruption from a train failing is clearly more serious than ever before.

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