|
|
Post by ducatisti on Feb 15, 2011 21:51:34 GMT
two new cables running the length of the Mill Hill plaftorm at Finchley central, in the four foot one each side of the negative rail.
*edit to spell Finchley in a way that at least roughly corresponds to accepted reality...*
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Feb 15, 2011 21:53:35 GMT
Are they red-ish in colour?
I'd say this would be the first step of the what will probably be cringeworthy Northern line upgrade...
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Feb 15, 2011 23:00:32 GMT
We were talking to a driver at High Barnet and he was saying that the TBTC for the Northern line is not proving as 'easy' to put in as it was on the Jubilee so they do have a standby system on hand.
Apparently trains were running into sidings at full speed and they had problems with the cast iron tube tunnels being magnetised!
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Feb 15, 2011 23:52:32 GMT
The Jubilee has a section of the old metal tunnels from about Baker Street to Finchley Road...
I think the Bentonite shield-constructed 70s stuff is concrete.
As far as I know there's currently no active TBTC on the Northern Line in any areas, but I'm sure someone could tell us how it is.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Feb 16, 2011 0:29:24 GMT
We were talking to a driver at High Barnet and he was saying that the TBTC for the Northern line is not proving as 'easy' to put in as it was on the Jubilee so they do have a standby system on hand. Apparently trains were running into sidings at full speed and they had problems with the cast iron tube tunnels being magnetised! TBTC testing on the mainline with trains hasn't started yet on the Northern, nor has there been any issues with magnetised tunnels....... Installation of the SelTrac inductive loops is now pretty much completed on the Morden branch and is now progressing well on the Barnet / MHE branch. The two branches between Kennington and Camden will be underway soon with the Edgware branch last. Also, all 106 trains of 95 TS have now been equipped with SelTrac equipment by Alstom. As has been reported on the TfL website Tube Lines are now finalising the details of a new plan with Thales with the aim of completing the NL testing and commissioning without needing all the weekend closures that were seen on the JL. |
|
|
|
Post by ducatisti on Feb 16, 2011 13:51:20 GMT
they are indeed reddish.
Re Seltrac loops - how did they do against programme?
It's nice to know they are finalising a plan. Do they have the Project management resource on either side of the fence to ensure they stick to it...?
|
|
|
|
Post by jardine01 on Mar 11, 2011 18:19:24 GMT
I dont think ATO is in use yet i would say it would be a while before ATO is in full use look at the Jubilee line thats 2 years late and still is parts witch are not ATO. Hopefully the Northern line upgrade will be much quicker than on the Jubilee line.
|
|
North End
Beneath Newington Causeway
Posts: 1,769
|
Post by North End on Mar 11, 2011 18:51:16 GMT
I dont think ATO is in use yet i would say it would be a while before ATO is in full use look at the Jubilee line thats 2 years late and still is parts witch are not ATO. Hopefully the Northern line upgrade will be much quicker than on the Jubilee line. I wouldn't count on that. If you believe TFL, TBTC is to be installed on the Northern Line without the luxury of countless weekend closures. I can't see how the progress will be quicker, especially on a line which is generally more complex than the Jubilee. |
|
North End
Beneath Newington Causeway
Posts: 1,769
|
Post by North End on Mar 11, 2011 18:57:51 GMT
The Jubilee has a section of the old metal tunnels from about Baker Street to Finchley Road... I think the Bentonite shield-constructed 70s stuff is concrete. As far as I know there's currently no active TBTC on the Northern Line in any areas, but I'm sure someone could tell us how it is. None of the 1970s Jubilee Line tunnels were constructed with a Bentonite shield. The Bentonite shield was used to build a trial length of tunnel near New Cross, which would have later become part of the Fleet Line had that section been constructed, however instead the tunnel now lies empty & disused. I believe parts of the JLE were constructed using this or similar concepts (Canada Water to Canary Wharf springs to mind). Most of the Jubilee Line tunnels south of Baker Street are concrete lined in one form or another, though there are still large areas of cast-iron or SGI lining, especially at junction tunnels / station tunnels / vent tunnels & shafts etc. |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Apr 16, 2011 19:48:31 GMT
None of the 1970s Jubilee Line tunnels were constructed with a Bentonite shield. The Bentonite shield was used to build a trial length of tunnel near New Cross, which would have later become part of the Fleet Line had that section been constructed, however instead the tunnel now lies empty & disused. Is any of that test bore still visible or accessible ? |
|
North End
Beneath Newington Causeway
Posts: 1,769
|
Post by North End on Apr 16, 2011 23:07:10 GMT
None of the 1970s Jubilee Line tunnels were constructed with a Bentonite shield. The Bentonite shield was used to build a trial length of tunnel near New Cross, which would have later become part of the Fleet Line had that section been constructed, however instead the tunnel now lies empty & disused. Is any of that test bore still visible or accessible ? Yes and yes. |
|
slugabed
Zu lang am schnuller.
Posts: 1,480
|
Post by slugabed on Apr 16, 2011 23:41:04 GMT
Really? I've often wondered about these tunnels.....where are they visible? How does one access them? |
|
North End
Beneath Newington Causeway
Posts: 1,769
|
Post by North End on Apr 17, 2011 0:02:04 GMT
Really? I've often wondered about these tunnels.....where are they visible? How does one access them? It's only a short length of tunnel, and it runs beneath what was originally the northbound East London Line heading from New Cross towards Surrey Quays. The shaft was hexagonal and it's footprint remains, along with an access hatch. The construction site was off Milton Court Road, and I believe is now an access point for the London Overground lines. |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Apr 19, 2011 15:29:50 GMT
It's only a short length of tunnel, and it runs beneath what was originally the northbound East London Line heading from New Cross towards Surrey Quays. The shaft was hexagonal and it's footprint remains, along with an access hatch. The construction site was off Milton Court Road, and I believe is now an access point for the London Overground lines. Thanks for the info. |
|
