The decade-long argument over who owns delay data
Fourteen operators have four months to publish journey-level figures. The fight to get here says as much about regulation as about trains.
For ten years the industry published one number a quarter, and for ten years nobody outside it could say what the number meant. That ends in December.
If you only publish the average, you have not published anything anybody can act on.
The regulator's position, set out in a forty-page determination, is that aggregation had become a way of avoiding scrutiny rather than a way of simplifying it.
What changes in December
Operators must publish arrival times for every scheduled service, in a machine-readable format, within seven days.
Two of the fourteen have said they will comply early.