please empty your brain below

The DLR has more CCTV cameras than the Underground. I was not expecting this.
I was surprised that the overground has over 30 miles in tunnels.
Why not just round up everything to the nearest 0 or 5, or is there a point where just give up, you have accuracy here and there, so its 996 CCTV cameras and 1716 ticket gates, but 16000 bridges and structures, either you know or you don't - especially as you are supposed to be checking and maintaining them.
Sorry but pedant alert - TfL does not have all this stuff eg a high proportion of those buses are owned by private bus companies.
It seems the 'Surface' has 45,000 gullies but only 100km of drain. That's a gully just about every two metres, which doesn't feel right.
Struggling with nearly 40% of the Overground being in tunnel. And 124km seems short, with the Watford & Lea Valley lines.
Another fascinating post DG, thanks.
A few thoughts.
(1) The statistics for overground - surely tfl have zero miles of track. Overground is a National Rail train operating company. The track is owned and maintained by Network Rail, and on the majority of routes served by overground, trains from other operators use the same tracks. (Perhaps tfl still own the East London line tunnels but that doesn't account for 124km)
(2) The much higher number of cctv cameras on DLR? That doesn't smell right. For sure every station has multiple cameras but not that many! Puzzled about where all the other cameras are (unless tfl have a typo)
(3) They don't quote any data for tfl rail (Crossrail)?
Thanks DG for yet another absorbing post.
Studies I was involved with several years ago for Tubelines, and personal observation since, for example there must be at least 15 on the spiral staircase at Euston, would indicate that there are many more than 996 CCTV cameras on 272 stations on the Underground (an average of less than 4 cameras per station).
The 1200 CCTV cameras across the DLR's 45 stations (average just over 26) seems much more realistic.
It's a bit worrying that Big Brother seems not to know how many eyes he has ...
Another point. No mention of ferries?
Uber pedant alert - for the new few weeks tfl don't have any, until the new Woolwich ferries arrive in December.
I was hoping the word "has" was nice and vague and non-specific. Obv not.
I agree that the percentage of Overground in tunnels doesn't seem right. I've just looked at TfL's map of tube lines in tunnels for passengers who would rather stay on the surface(this also shows Overground lines). I would think that less than 10% is in tunnels.

These lists of facts and figures are always interesting (to me anyway!).
@Nightmale - It depends how drains are defined. I suspect that for the streets, they are the pipes that connect the gulley to the main sever and thus aren't that long. TfL would have responsibility for the gulley and drain whereas Thames Water would have responsibility for the main sewer.

Whereas, on the Underground, drains normally refer to the pipes that (usually) run alongside the open sections of track for surface water drainage
There's 20550 cycle hire docks in the ground right now, so that number's wrong. Has been up to 20950 in the past.
40,000 trees - really ?

dg writes: If you read the report, really.
Well as it's a rainy day, I looked over the 200 pages over an jumbo-sized cup go tea and found some things of interest (to me at least):

A 27% spend of total budget on investment and renewals looks really healthy, given current financial pressures.

The whole Deep Tube train programme is being delayed by legal action from the unsuccessful rolling stock bidders. I can’t se how a body awarding the contract would want to do business with a supplier who twisted their arm and delayed the process... unless there was something genuinely dodgy with the procurement process.

It’ll cost £100 per day for certain classes of HGV/ PSVs to enter the Ultra Low Emission Zone: Wow!

We have reached peak New Routemasters, being 1,000 of 8,500 buses overall.

Quite interesting: Research into new standards to make bus interiors more forgiving for people who trip or fall - perhaps admitting final defeat on the 'Please Hold Tight' (because buses do actually move) malarkey.

Research into retractable curved platform gap fillers at Baker Street

They are looking around for somewhere to put a 2nd coach terminal

Like my own company, the palava around periodic office software upgrades is such a pain in the butt that the whole of TfL is going on to Office 365. This must be the most business savvy thing that Microsoft did in the face of losing their previous monopoly products to Apple, Google etc.
@IslandDweller

I think your points 1 and 3 are linked. ie that TfL Rail is put under the Overground heading. While TfL own the tracks north of New Cross, that doesn't give those figures, but adding the unopened Elizabeth line makes them sound a bit more correct.

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Re: DLR that various people have bought up

Surely the DLR has a lot of track-side CCTV, etc so the control centre can see if there's something in the way, a role the drivers would do on the Underground.

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272 Underground stations? When I did the tube challenge (so yes, 2 Paddingtons, 2 Hammersmiths) it was 270, and none have been added since! TfL are also giving the 270 figure elsewhere.
I wish they would spend some money on looking after their highway structures that are on the extremities of London. There are several pedestrian subways under the A3 in Surbiton that are in dire need of re-tiling and general refurbishment. Complaints have resulted in no action. Come on Tfl pedestrians are as important as transport.
Apart from the length of tunnels (I suspect halving it would be accurate because we have Hampstead Heath tunnel and the figures are possibly measured on one-track-one-go basis), I found the number of trains alarmingly low. 65 seems just 378 and 172 combined, and the Lea Valley line trains are definitely excluded.
More pedantry, so apologies up front...

TfL own the NBfL buses (and rent them out at peppercorn rates) so they possess 1000 buses. The rest are private.

DLR - as I understand the asset distribution, DLR/TfL do not own the tunnels, only lease them (PFI or PPP deals?).

Underground - definition of 'tunnel' is needed - passenger, rail, vent shafts etc. Possible under-count here.

CCTV - given one non-interchange tube station has over 20 cameras, and one complex interchange has close to 50 (if anyone has more accurate site data, please correct this), to only have 996 cameras may not be using a universal counting principle. Some double-ended Crossrail stations may also have close to 50 cameras each - but that's 'future', not 'now'. Does the CCTV count include monitoring non-public areas?

Some of this is unanswerable but transparency can be opaque sometimes.
What’s the difference between a tram stop and a tram station?
I'm not convinced by the number of escalators and lifts. The LU numbers are almost 100 down on the numbers I use for reporting purposes, though I grant you my list contains certain ones which are not LU assets but which for some reason are maintained by LU (looking at you Hammersmith and Vauxhall bus stations).

Also where are there 30 DLR escalators? Off the top of my head the only DLR stations I can think of with escalators are Canary Wharf (4), Heron Quays (2), South Quay (2) - all the other ones with escalators (Bank, Stratford, West Ham, Canning Town) are LU-maintained stations.
What defines a structure ? Is a viaduct a bridge, or a number of bridges, or a structure, or something else ?
And Overground escalators... there are two at Rotherhithe so where is the odd 3rd located?
@Richard I wouldn't be surprised if LU still maintain Rotherhithe, I was wondering if there might be three escalators at Hackney Wick or some other new-build. Upgrades at Whitechapel maybe?
How many rivets?
Seven Sisters has a single escalator up to one of the Overground platforms. That plus Rotherhithe seem the most likely way to get to three.
The underground CCTV camera number is wrong. There are over 5000 cameras on the underground trains alone. Also every station has at least 4 cameras for OPO CCTV...hat's more than 1000. Then there's the operational and security cameras too.
TfL also published this graphic in some committee papers in June last year. The numbers were identical.

But here's a version from at least 2½ years ago, and that's a bit different.

Since then...
• the Overground has gained 332 cameras, 1 escalator, 5 lifts and 122 bridges & structures.
• the DLR has gained 200 cameras, 28 lifts, 1584 validators, 8km of tunnel, 48km of track and 1430 bridges & structures, but lost 40 escalators.
• data for Underground, Surface and Trams has not changed.

All of which suggests we shouldn't trust the data 100%.
The truth is that accurate asset management within an organisation of the size and complexity of Tfl is impossible. The same certainly applies to larger ones, and also to many which are much smaller.

The statistics will be constantly changing and need to be sourced from hundreds of staff performing different roles in as many different locations. Many of these will have more important things to do, or at least think they do, or might simply have been overlooked. Those responsible for collating the data may not have authority to insist that the contributors comply, and probably do not fully understand the information they receive.
Sorry, but I cannot agree with the blanket statement that "accurate asset management within an organisation of the size and complexity of Tfl is impossible"is correct for all things.
Whilst it may be true for paper clips, it cannot be true for expensive capital items, such as tube trains, fixed assets the number of which vary slowly over time, such as escalators, or assets which need maintenance or regular inspection, such as cctv cameras on stations (which I once had to count to check that what had been paid for had in fact been installed!).










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