Harringay, Haringey - So Good they Spelt it Twice!
Piccadilly line upgrade ?
A bit of a generic question but there are new trains planned for around 2022 but will these be rolled out in conjunction with a signalling upgrade using technology that controls the Victoria Line ?
I find the Victoria line to be brilliant and the Picc is shocking especially the massive gaps in trains. I've seen 12 minute gaps in the rush hour!
Replies to This Discussion
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Permalink Reply by John McMullan on
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If you've seen that at King's Cross it's incorrect. There is something wrong there, the trains come much quicker than the ridiculous times that indicator shows.
I think with a few sensors, some Cat-6 cabling and a few Raspberry Pis they can do a lot better than they're doing at the moment.
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Permalink Reply by claire taylor on
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I noticed that as well.
Another difference I noticed in Pic line and Vic line is that the Vic line is much hotter. Why is that??
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Permalink Reply by Alan Stanton on
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Heat on tube lines.
I'm sure there's someone on HoL who knows this stuff a lot better than me. But in the meantime a Google search will give you some articles. For example this 2017 one by Laurie Winkless on Forbes website. https://www.forbes.com/sites/lauriewinkless/2017/06/22/sweating-on-...
She describes herself as "a fully-fledged transport nerd". After empIoyment as a researcher in the Materials Team at the National Physical Laboratory, she says she "dived into writing". Her first book was , "Science and the City: the Mechanics Behind the Metropolis", published as an ebook in 2016.
https://www.bloomsbury.com/uk/science-and-the-city-9781472913227/
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Permalink Reply by ThaiDi on
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A lot of interesting detail in this article about cooling the tube, and the various challenges of the different lines at different depths, and where the heat comes from.
https://www.ianvisits.co.uk/blog/2017/06/10/cooling-the-tube-engine...
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Thanks very much ThaiDi, for this link to Ianvisits.co
I'm sure it's me missing the obvious, but I can't see how to search on his fascinating site.
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Interesting...thanks
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Here's a 2013 map of tube lines and temperatures (source CityMetric) at https://www.citymetric.com/transport/which-london-s-hottest-tube-li...
The newish Victoria line trains have regenerative braking which uses the slowing train's energy to generate electricity rather than heat, so it may be relatively better than some years ago - the old trains could not do this. And the map reaffirms my practice of not taking a Central Line train in summer unless I absolutely have to. And always trying to travel at the front of the carriage so you get the draught from the hopefully lowered window in the end door.
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If I get onto the Victoria line it's at Fins Park... I immediately notice the increase in temp. On here, it looks slightly cooler....?
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The Victoria Line also has platforms higher that the rest of the line to help with energy conservation. Energy must have been scarce at some stage in our past...
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TfL's https://tfl.gov.uk/campaign/tube-improvements/what-we-are-doing/imp... doesn't give a signalling date. 2023 for the trains.
This post from a year ago, by an informed blogger, says resignalling starts 2020, completion 2026.
https://www.ianvisits.co.uk/blog/2017/02/05/londons-rail-upgrades-a...
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These trains are needed asap. They need to be reliable, fast, quiet - trains are far too noisy and exceed safety limits, and comfortable ie not overcrowded all the time, good seating, including temp wise in summer. also the air needs to be filtered and checked to control particulates which are high on the underground and exceed safety limits. Lastly they need to be affordabe, current ticket prices are exorbitant.
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The new(ish) Victoria line trains were really hot at the start, as they couldn't switch on the regenerative braking at first. The frequency is great, except when it goes wrong & then you often have problems getting into e.g. Finsbury Park station too (which means that you can't access the Piccadilly Line either).
On future Tfl spending, there are worrying signs of cost over-runs on CrossRail & the worry is that the drop in passenger growth could be partly linked to Brexit, as the statistics show that substantially fewer people from other EU countries are now coming to the UK (leading to skills shortages in NHS etc).
The London Transport museum has now got an exhibition on Cross Rail 2, but the question is whether there will really be the resources for it, particularly given the poor prospect for public finances post-Brexit.
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