On 9 Oct, 17:19, "Richard J." wrote:
Tim Roll-Pickering wrote:
Graham J wrote:

However a simplified overview of the problem is that heading
towards London Bridge

While true, isn't there also a problem at Farringdon because of the
time it takes to switch from overhead to track power supplies?

Shoudn't be. It takes only a few seconds, and at Farringdon should not
extend the normal dwell time in the platform.
--
Richard J.
(to e-mail me, swap uk and yon in address)


Some peak trains are scheduled to stand for several minutes at
Blackfriars. Also, as someone said, it's travelling at walking pace
and generally waiting so long at every station that takes up the time.

When Thameslink first started in 1988 or so, it wasn't just the
central section. Thameslink trains were known for standing at every
station for a long time all the way to Brighton. It was a subsequent
innovation for Thameslink to do London Bridge to Brighton in an hour.