In message
-septem
ber.org, at 14:48:38 on Sun, 7 Jun 2015, Recliner
remarked:
Crossrail are hoping to run 8tph offpeak from Shenfield, despite
currently only having permission to run six.

As Crossrail will be the main (only?) operator on the slow lines to
Shenfield, who is it that is limiting the service?

ORR.

Who else is competing to use the line?

The Greater Anglia franchise holder is running trains to Southend,
Braintree etc. They are fast to Shenfield though. The ORR's stance may
be aimed more at having a 10-minute clockface timetable and reducing the
subsidy if they think 6tph is adequate for the passenger numbers.
--
Roland Perry