So... originally Cambridge was supposed to have 4tph (2 from Cambridge North), which was dropped to 1ph from Cambridge.
The outcome of this so far has been:
Sunday: three trains ran
Monday: 7 trains out of 18 ran
Tuesday: 10 trains out of 18 ran
Wednesday: 9 trains out of 18 ran
Thursday: 3 out of the first four trains ran, but then the service was cancelled for the rest of the day
How long do we think this will last before there is an "emergency timetable"?