Paul Corfield wrote:

There are huge planning and booking timescales
mandated on the Infracos so far as LUL closures are concerned. There are
also rules about avoiding too many journey opportunities being lost. The
process does include liaison with Network Rail, DLR and the TOCs to try
to ensure that viable opportunities remain for people to get about. In
addition there has to be a sanity check with the bus companies to make
sure they can resource the envisaged scale of rail replacement services.
I appreciate that it can look as if no one has bothered to talk to one
another but the opposite is usually true.

Whilst I appreciate there is co-ordination, one thing that really frustrates
passengers is the lack of information about TfL closures (and other TOCs)
when they turn up at their local station, especially when the service there
isn't running (but even when it is it can be unhelpful - I've been caught
out by Jubilee line closures where the first I've been told about them is
when I've got to the concourse at Stratford). I remember in past years
seeing posters about weekend closures on the Northern Line up at least as
far south as Sutton and of course there used to be versions of the network
connections map showing *all* engineering works in the region, not just the
ones on the local TOC's services. But now it's a very partial map that means
journeys across town become pot luck and emergency forward planning to go to
use a different interchange isn't possible. When the National Express
Stratford-Ilford route is down people in Forest Gate are unlikely to trek
down to Upton Park (or take the GOBLIN rail replacement bus to Barking)
because they have no confidence they will find the District Line running
when they get there. So instead they have to use the 25 bus which comes to
the second problem - National Express seem to think the 25 service as it is
is an adequate substitute for their weekend service (which is frequently ram
packed anyway) or seem to believe that the way to handle overcrowding is to
make things so unbearable to drive people away.