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[email protected] · October 2nd 15, 11:15 PM posted to uk.transport.london

In article ,
(Paul Corfield) wrote:

On Fri, 02 Oct 2015 15:59:30 +0100, David C wrote:

On Fri, 02 Oct 2015 06:26:29 -0500,
wrote:

In article ,
(Paul Corfield) wrote:

On Wed, 30 Sep 2015 19:55:10 -0500,
wrote:

Trouble is that there are two electrification systems at Barking.
Platform 1 isn't ideally situated for overhead electrification.

What? You can see on Google satellite view that the tracks into
Platform 1 are not electrified. Given that overhead electrification
sits perfectly well beside 4th rail LU electrified tracks at Barking I
don't see what the problem is in stringing wires into that platform as
part of GOBLIN electrification.

Please feel free to tell me what I've missed.

I'm not saying it can't be done but it is a lot more complicated to
signal so tends to be avoided. The LUL 3rd & 4th rail electrified tracks
lie between platform 1 and the overhead electrified tracks, don't they?
So the Barking Riverside route won't go near platform 1 so why keep it
in service?

Sorry but you are not making any sense.

As has been mentioned, 25 kV AC electrification has co-existed with
the under-ground since 1962without any problems.

(Back in the past, LT& BR shared tracks between Bromley by Bow, but
that is no longer the case, there is no physical connection between
the two systems.)

Wiring platform 1 "might" have clearance problems, but single trolley
wire OHE is all that is needed there, & the only signal that would
require immunisation is the platform starter.

The up / down cross-over is already wired, so this should be a cheap
(!) & simple project.

As for why, Mr. Corfield has already pointed out that a wired turnback
with a platform face just might be useful, & maybe it might not be
possible to path the whole Goblin service to Barking Riverside through
the the platform 7 & 8 bottl-neck at Barking Station.

And more fundamentally the GOBLIN route will be electrified and
equipped with EMUs before the Riverside extension is built (assuming
the powers are granted). Therefore you really do need platform 1 to
be wired as I doubt you could have GOBLIN trains standing at P7/8 for
up to 48 mins an hour when freight and C2C trains have to use the
tracks too.

Now that is a very fair point.

--
Colin Rosenstiel