Train operators publish some performance data, such as this example from Transport for Wales Rail Services (TfW). Among other things, TfW shows the percentage of delay minutes attributable to TfW, Network Rail, and other train operators (TOCs).
However, both TOC and Network Rail delays can obviously have various different causes, I think the Delay Attribution Guide I've seen posted elsewhere on this forum lists over 270 possible reasons for a delay. Is there anywhere where the percentage of delays attributable to each cause is broken down to anything like that extent? Perhaps one of the open-data websites?
Of course in the real world it is also possible for a train to be delayed by multiple events in the course of its journey. For example a 2-car class 175 on a Milford Haven to Manchester run could be held due to animals on the line then allowed to proceed (after the line had been cleared) and later end up leaving Swansea just before a GWR HST and thus being further delayed as passengers who have turned up early for the HST try to cram aboard at Neath, Port Talbot and Bridgend. Can (and does) the rail industry record the number of minutes attributable to each cause or do they have to chose one reason the train was late?
However, both TOC and Network Rail delays can obviously have various different causes, I think the Delay Attribution Guide I've seen posted elsewhere on this forum lists over 270 possible reasons for a delay. Is there anywhere where the percentage of delays attributable to each cause is broken down to anything like that extent? Perhaps one of the open-data websites?
Of course in the real world it is also possible for a train to be delayed by multiple events in the course of its journey. For example a 2-car class 175 on a Milford Haven to Manchester run could be held due to animals on the line then allowed to proceed (after the line had been cleared) and later end up leaving Swansea just before a GWR HST and thus being further delayed as passengers who have turned up early for the HST try to cram aboard at Neath, Port Talbot and Bridgend. Can (and does) the rail industry record the number of minutes attributable to each cause or do they have to chose one reason the train was late?