Jubilee Line signals

Last month, the Overground was officially the most reliable train service in the UK. The Jubilee Line, by contrast, continues to deliver a shocking service.

The BBC reports that we only had 78% of a proper service in 2009/10 and explains that the particular problems of the last few weeks relate to the new signalling technology that all the disruption of the last few years has been for.

The trains and the stations aren't talking to each other properly at the moment, but things are apparently getting better and we should have the full new service by June "at the latest", although the last time we heard, it was supposed to be fully operational in the Spring.


Lorna J said...

Ladies & Gentleman - I give you the Jubilee Line. One of the core services for the 2012 Olympics. Really don't want to be in a position to say "I told you so" next year. TFL, sort your shit out. You're an embarrassment.

Running Nutter said...

I understand that-the problems originate from electrical noise from the train motors interfering with the comms that enables the system to know where the trains are. Once one train loses comms then all/some others others on the line have to stop.

Brockley Jack said...

Overground RELIABLE??? Ha!!!

Headhunter said...

The ineptitude is incredible. THis is on a line a large chunk of which is barely 10 years old! If RN is correct and train motors interfere with comms then why was this not discovered earlier? It's a pretty fundamental flaw, we're not talking a slight teething issue that may have got overlooked, it's the trains motor (a hugely important piece of kit) interfering with communications (another hugely important piece of kit)!

Anonymous said...

Well that's solved then. Bloke down the pub identifes an EMC issue.

Anonymous said...

This is the result of tubelines ineptitude and the scandal of the public private partnerships. The result is zero accountability and the public is left to pay for the mess.

Mb said...

I think it's a result of it being a really complex bit of work, whoever was (and are) doing it.

The PPP was a balls up but not sure LU would have managed it any better.

Some tech stuff...


Anonymous said...

I think communication systems and electric trains have co-existed time enough to have seen this one coming.

Whatever the politics of its financing, this smells like a design cock-up.

Was it done on the cheap with known weaknesses and risks that would have to be fixed at great expense later?

I wonder if we will ever get to hear the real story behind it. Normally there has to be an accident for anything to spill out into the public domain.

Mb said...

yes there are design and instalation issues, they happen and are a bad thing. Was it known about and left to be fixed later at great expense? I doubt it. Bit like asking if they were unknown knowns or known knowns.

Now this is where the pointless debate between private and public comes in. Tubelines was own and run by some of the most red blooded private sector companies going, it was going wrong. It's now 'managed' by LU, actually only a bit. It's still being implemented by the same people who started it. They are a well established company. It's just a masivley complex job from a logistics point of view and equally difficult from a technical point of view. It was never going to be implemented glitch free. doing anything complex and new in a fixed engineering hours shift can be a little tense.

I don't know the issues, I've heard various tales of woe but I doubt it's an issue that can be summarised in five lines on a blog.

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