TfL has quietly released a map of the London Overground in 2026

Image: Transport for London.

Rejoice, map geeks of old London town! The capital’s transport authority, TfL, has quietly released a lovely new map showing where it expects its heavy rail London Overground Network to take you by 2026.  

The map was released as part of a consultation on its plans to extend the Gospel Oak-Barking line to Barking Riverside, the site of a big new housing estate. (They're planning to put some houses there, and plans to extent the DLR have fallen by the wayside, so the thinking is they might as well send some big trains there instead.) Here’s a map:

But the network map which accompanies this consultation contains all sorts of other interesting factoids about what TfL think the future looks like. You can examine the whole thing here, but it’s a bit on the unwieldy side for a family website like ours, so we’ve plucked out a few of the more interesting details below.

More lines!

The map shows all the bits of the rail network whose operators will be answerable to the city’s government, rather than the national Department for Transport. That includes the existing Overground network; the West Anglia suburban lines into Liverpool Street (which TfL is taking over some time next year); and Crossrail (which is currently under construction, and which neatly ties the rest of the network together).

Oddly, though, it chops off the outer extremities of Crossrail. That sort of makes sense when it comes to far distant Reading and Maidenhead, but it’s a bit odd that it excludes two stations (Harold Wood and West Drayton) which are actually within the city boundaries.

More changes!

Just to annoy everyone, the new Overground network crosses the existing one in no fewer than four places, without stopping once.

This is probably why the map has, for the first time, shown interchanges which you can make if you’re happy to walk along at street level for a bit.

More excitingly, it also includes an entirely new station at Old Oak Common, where you’ll be able to change from the Overground to Crossrail (suggested branding: “Old Oak Common: The Stratford of West London”). This could one day be an outer London stop on the High Speed 2 line to the north, too, which would make it easier to get from Heathrow to points north.

Sadly it still doesn't point out that Camden Road is a mere five minute walk from Camden Town tube station. Can’t have everything.

More orange!

All this is very interesting, if you're into such things (and we obviously are). But it's also oddly unwieldy.

By 2026, if all goes to plan, the Overground network will have six entirely separate lines, some of which have up to four branches. Yet it continues to colour them all in the same shade of Sunny Delight orange.

These lines go to such a wide range of destinations; often cross without interchanging; and one branch right out in the far east never connects with any of the others.

Given all that, could we maybe look into differentiating them through some kind of colour scheme, perhaps? Like, y’know, every other urban rail network in the world?

More TOWIE!

There's one more oddity. Far out in the wilds of zone 6, where east London drains off into Essex, London Overground is also taking on a three-station, single track branch line on which you can get two trains an hour from Romford and Upminster and back.

There's a long and complicated reason for this, but it basically amounts to "nobody else wants it". It's too small to be part of Crossrail, but doesn't connect to anything else, so TfL are stuck with it.

If you do fancy making a trip to Emerson Park halt, we recommend you do so in December: the giant houses in the neighbouring estate tend to go absolutely nuts with their Christmas lights.

 
 
 
 

The Museum of London now has a fatcam video feed so you can watch its fatberg live, for some reason

I think it looked at me: Fatcam in action. Image: Museum of London/YouTube.

Remember the “monster fatberg” – the 250m long, 130 tonne congealed lump of fat, oil, wet wipes and sanitary products found lurking in the sewers of Whitechapel? Back in December, the Museum of London acquired a chunk of it to put on display, describing it as “London’s newest celebrity”, which really puts the newly minted Duchess of Sussex Meghan Markle in her place.

Anyway: the fatberg is now in storage – but fear not, for it’s now possible to monitor it, live, from the comfort of your own desk. From a press release:

The Museum of London today has announced that it has now acquired the famous Whitechapel fatberg into its permanent collection. The fatberg will now permanently be on display online via a livestream. It can be viewed here.

I clicked through, because I have poor impulse control, and was greeted by a picture of a disgusting lump of yellow/beige fat engaging in so little motion that it’s not entirely clear it’s live at all. However, a note beneath the feed promises all sorts of excitement:

Whilst on display the fatberg hatched flies, sweated and changed colour. Since going off display, fatberg has started to grow an unusual and toxic mould, in the form of visible yellow pustules. Our collections care team has identified this as aspergillus.

Well, that is reassuring.

Conservators believe that fatberg started to grow the spores whilst on display and now a month later, these spores have become more visible. Any changes to the samples will now be able to be viewed live.

Is it ever likely to do more than this, I asked a spokesperson? “Does... does it move?”

“Not at the moment but who knows what might happen in the future!” came the reply. So, there we are.

Fatbergs, since you ask, are the result of cooking fat, poured down sinks to congeal in sewers. Assorted wipes and napkins are also involved, helping to give the thing structure. There are even fatberg groupies, because of course there are.


If you happen to want stare at a disgusting greasy yellow/beige lump that will always be indelibly associated with London, then former mayor Boris Johnson can often be seen jogging in the Islington area.

And you can watch fatcam here, for some reason.

Jonn Elledge is the editor of CityMetric. He is on Twitter as @jonnelledge and on Facebook as JonnElledgeWrites.

Want more of this stuff? Follow CityMetric on Twitter or Facebook.