On Sat, 24 Jan 2015 09:42:10 +0000, Roland Perry
wrote:

In message , at 01:31:19 on
Sat, 24 Jan 2015, Paul Corfield remarked:
Crossrail will be largely segregated from other services so there are
fewer opportunities for things to go wrong than on Thameslink.

Eh? Loads of freight on GWML and GEML. Plenty of other services on
those lines too. Frequent suicides in West London, never ending
signal and wiring problems on both NR stretches of line.

And of course many (most?) of the problems with Thameslink seem to be in
the core. Wellies required again until at least 2pm today, for example.

IIRC The original Metropolitan Railway was built on a drained river
bed in the Farringdon Area. Moreover, the Widened Lines pass under
the original pair at this point. This makes for a drainage headache
modern engineers would avoid.

Crossrail is being constructed to a much higher standards (Although I
do wonder about the spray- on concrete in the station areas). OTOH,
given that Crossrail will run thru three different signalling systems,
integrate into the timetables of two franchises, and mix with local
and freight traffic, one can see it will present an operating
challenge.

In message , at 12:12:28 on
Sat, 24 Jan 2015, e27002 aurora remarked:
given that Crossrail will run thru three different signalling systems,
integrate into the timetables of two franchises, and mix with local
and freight traffic, one can see it will present an operating
challenge.

Three franchises if you count HEx.
--
Roland Perry

Roland Perry wrote:
In message , at 12:12:28 on
Sat, 24 Jan 2015, e27002 aurora remarked:
given that Crossrail will run thru three different signalling systems,
integrate into the timetables of two franchises, and mix with local
and freight traffic, one can see it will present an operating
challenge.

Three franchises if you count HEx.

True, though the only tracks they'll share are in Heathrow itself, as
Crossrail will use the GW relief lines and HEx is on the mains.

In message
-septemb
er.org, at 12:45:24 on Sat, 24 Jan 2015, Recliner
remarked:
given that Crossrail will run thru three different signalling systems,
integrate into the timetables of two franchises, and mix with local
and freight traffic, one can see it will present an operating
challenge.

Three franchises if you count HEx.

True, though the only tracks they'll share are in Heathrow itself, as
Crossrail will use the GW relief lines and HEx is on the mains.

My impression was that they wouldn't be doing much (if any) track
sharing with Greater Anglia between Stratford and Shenfield.
--
Roland Perry

On Sat, 24 Jan 2015 13:02:31 +0000, Roland Perry
wrote:

In message
-septemb
er.org, at 12:45:24 on Sat, 24 Jan 2015, Recliner
remarked:
given that Crossrail will run thru three different signalling systems,
integrate into the timetables of two franchises, and mix with local
and freight traffic, one can see it will present an operating
challenge.

Three franchises if you count HEx.

True, though the only tracks they'll share are in Heathrow itself, as
Crossrail will use the GW relief lines and HEx is on the mains.

My impression was that they wouldn't be doing much (if any) track
sharing with Greater Anglia between Stratford and Shenfield.

Yes, I think you're right.

Paul Corfield wrote:

There is always the potential for failures on main lines to mean that
signalliers will reroute some trains to slow lines. I understand that
in the longer term it may be necessary to shove HEX on to the local
lines (but I might be wrong on that). Depends entirely on the scale of
FGW services post electrification and catering for growth.

What's really needed for HEX is another pair of lines Airport Jn-Padd.
Wharncliffe Viaduct and Ealing Broadway-West Ealing are the main problems
to achieving that, as far as I can see.


Anna Noyd-Dryver
(Is misc.transport.urban-tramsit [sic] a real group?)

On Sat, 24 Jan 2015 14:29:27 GMT, Anna Noyd-Dryver
wrote:


Anna Noyd-Dryver
(Is misc.transport.urban-tramsit [sic] a real group?)

No, it is a typographical error.

In article ,
(Paul Corfield) wrote:

I understand that
in the longer term it may be necessary to shove HEX on to the local
lines (but I might be wrong on that). Depends entirely on the scale of
FGW services post electrification and catering for growth.

Or, as they are known to Great Westernists, the relief lines.

--
Colin Rosenstiel

On 2015\01\24 14:13, Paul Corfield wrote:
On Sat, 24 Jan 2015 13:02:31 +0000, Roland Perry
wrote:

In message
-septemb
er.org, at 12:45:24 on Sat, 24 Jan 2015, Recliner
remarked:
given that Crossrail will run thru three different signalling systems,
integrate into the timetables of two franchises, and mix with local
and freight traffic, one can see it will present an operating
challenge.

Three franchises if you count HEx.

True, though the only tracks they'll share are in Heathrow itself, as
Crossrail will use the GW relief lines and HEx is on the mains.

My impression was that they wouldn't be doing much (if any) track
sharing with Greater Anglia between Stratford and Shenfield.

There will still be some in the peaks as Crossrail will still run some
trains into Liverpool St rather than in to the tunnels post 2019.

Will they not be sharing with South Eastern in the Abbey Wood area?

In article , (Basil Jet)
wrote:

On 2015\01\24 14:13, Paul Corfield wrote:
On Sat, 24 Jan 2015 13:02:31 +0000, Roland Perry
wrote:

In message



rg, at 12:45:24 on Sat, 24 Jan 2015, Recliner
remarked:
given that Crossrail will run thru three different signalling
systems, integrate into the timetables of two franchises, and mix
with local and freight traffic, one can see it will present an
operating challenge.

Three franchises if you count HEx.

True, though the only tracks they'll share are in Heathrow itself, as
Crossrail will use the GW relief lines and HEx is on the mains.

My impression was that they wouldn't be doing much (if any) track
sharing with Greater Anglia between Stratford and Shenfield.

There will still be some in the peaks as Crossrail will still run some
trains into Liverpool St rather than in to the tunnels post 2019.

Will they not be sharing with South Eastern in the Abbey Wood area?

Parallel but separate tracks, surely?

--
Colin Rosenstiel