..... A 90-minute ballpark is reasonable to assume with the descoping and there's no reason why trains would need to take more than 100 minutes.
I have now had a chance to skim the Technical Report published yesterday.
The timings currently quoted for the fastest journeys Cambridge-Oxford are 76-83mins, subject to option. The timings exclude stops at Cambridge (South) and Bassingbourn, whether or not that they include for a stop at Cambourne is unclear (relevant options only for latter 2).
I would be very pleased if similar timings make it to a future public timetable, but I think that when Operations Managers have their say timings quoted will be relaxed a little. Of course it is quite possible that a couple of trains a day could headline the timings (like 'Norwich in 90') but I wouldn't count those.
By the time services are running the pressure for a 'right time railway' is likely to be higher than it is now. A very big risk to performance will be interaction with other services, especially in The Vale between Fenny Stratford and Flyover Junction Summit.
Then I spotted this at paragraph 5.20:
For all route options, additional infrastructure works would be required for the Marston Vale Line to provide sufficient capacity for EWR services between Oxford and Cambridge once the EWR central section has been delivered. These additional works are not expected to affect the current route of the Marston Vale Line.
Anybody know exactly what that entails?
PS Spotted a couple of things that raised the eyebrows:
That 'Lousey Bush' is a nature reserve - well it would be wouldn't it?

That 'The Midland Main Line' is an existing railway line running from London to Leeds and Manchester through Bedford
