Question to the Department for Transport:

To ask the Secretary of State for Transport, on how many days during 2017, excluding official strike days, Govia Thameslink Railway has met its target Public Performance Measure on the Southern Mainline.

Govia Thameslink Railway (GTR), like all other Franchised Train Operators are measured against a periodic Public Performance Measure target, which then contributes towards a 13 period Moving Annual Average Public Performance Measure; which is an industry standard set out by the Office of Rail and Road (ORR).

This, again like all other Franchised Train Operators, is measured against the total sum of its operations and not individual component parts like the Southern Mainline.