Project: Redrawing the London Tube Map

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See also: More design notes on the map, and a newer version showing out-of-station interchanges.

London’s Underground Diagram (or “Tube Map”) has long been regarded as an icon of informational design, pioneering the way for just about every other schematic transportation map in the world since its inception way back in 1931. But how much of that reputation is actually deserved these days?

Note: the design of the Tube Map is the intellectual property of Transport for London. This redrawing has been executed as an educational and instructive design exercise only – a design and technical critique of the current map that also offers some ideas for future improvement. It is not available for sale or for licensing. The large preview of the map is heavily watermarked to make this situation clear to all viewers.

The Underground network has grown in both size and complexity in the decades since the Tube Map’s debut, and H.C. Beck’s ingenious design has been asked to convey more and more information with each passing year: more Underground lines than he probably ever envisioned, the addition of the Overground and DLR, fare zone shading (an early version of which he absolutely loathed), accessibility icons and more. Personally, I believe that the map – in its current format – is ill-equipped to handle future additions, especially with the just-announced decision to gradually transfer all Greater London commuter rail services to TfL’s control under the Overground brand.

A number of designers have proposed alternative London rail maps that deal with this problem – like this lovely diagram by the very talented Jug Cerovic – but I started to wonder: what if the Tube Map was just drawn better?

There’s no doubt in my mind that the current iteration of the Tube Map is a diagram that’s almost completely forgotten that it is one. There’s very little rhythm, balance or flow to the composition of the map outside the central “thermos flask”, and there’s shockingly little use of a underlying unifying grid. As a result, nothing really aligns properly with anything else anymore.

Much of the blame for this belongs to the hideous alternating-stripes fare zones, which have to go around every element that belongs to a station. If there’s a long station name, the zone has to enclose it completely, which can push the station marker out of harmonious spacing with the other stations on the line (see the Piccadilly line out to Heathrow), or force station names to suddenly swap to the opposite side of the route line (hello, southern end of the Northern line!). The more I look at the map, the more it’s obvious that the zones are making the routes and stations subsidiary to them, not the other way around.

So – first things first: the zones have to go. They’ve only been on the Tube Map since 2002, so it’s not a huge loss. TfL could offer an extra map that contains this information if people need it (like many European transit agencies do), but I kind of get the feeling that tap-on, tap-off Oyster cards mitigate the need for most travellers to know which zones they’re passing through.

Next, the accessibility icons, which are a design problem for a few reasons. Their use of a large circular station marker – regardless of whether or not they’re an interchange station – adds visual confusion and clutter to the map, and impedes the reading flow of route lines. The DLR is a web of blue blobs (which is fantastic for accessibility needs) and becomes very visually heavy in comparison to the rest of the map. See how much nicer it looks below with ticks for stations!

I wanted to find a way to reserve the circular station shape to only indicate interchanges (its original purpose), which meant I had to come up with a different way to show accessible stations. Because London unusually shows two types of accessible stations – street to platform, and street to train – a reader has to first refer to the map’s legend to determine which icon is which. Using this to my advantage, I devised simple circular blue dots – hollow for street to platform, and solid for street to train – that could either be placed inside an interchange station’s circle, or next to a standard station’s name along with National Rail, water services and other informational icons. The idea for placing a small circle inside an interchange circle had its roots in the Tube Map itself, which used a small black dot inside an interchange to indicate connections to British Rail in the 1964 Paul Garbutt-designed version of the map. Design-wise, I think that it’s an unobtrusive and attractive solution, although it’s probably illegal under some Disabilities Act or another to not use a wheelchair icon to indicate accessibility. This design solution also had the added bonus of restoring most of the lovely and distinctive terminus station “bars” to the map — blobs having replaced all but three of them (Watford, Mill Hill East and Cockfosters) on the official map.

Above, you can see my blue icons set inside an interchange symbol (right) in a diagram that illustrates the other major problem with the accessibility blobs: they force route lines further apart than they should be. In their natural state, double-interchange symbols actually overlap each other by the width of their black outline, which is half the thickness of a route line.

Side note: The width of a route line (known as “x”) is the building block of  the Tube Map, and many other measurements are derived from it: it’s the x-height of text labels, while an interchange symbol has a diameter of 3x. This is also the minimum allowed inner radius for a route line when it changes direction. Labels are set 1.33x away from the edge of route lines, a tick is a 0.667x square, and so on. It’s all related!

However, the accessibility icons can’t overlap without one icon partially obscuring the other and the connecting bar between the two circles being completely lost. So the circles and their respective route lines have to be set a little further apart (with a very odd gap of 2.19x by my calculations, compared to the 1.5x minimum possible gap). A difference of 0.69x may not seem like much, but the tighter spacing definitely helps the Metropolitan/Jubilee line pairing from St. Johns Wood to Wembley Park work together as a coherent element. It also saves a surprising amount of space in other places, which helps the map feel a little lighter and more spacious throughout.

Alignment of elements is something I worked incredibly hard on to restore the diagram-like qualities of the map. Stations line up with each other across the map: see from Northfields on the Piccadilly all the way across to Embankment. Below that, Gunnersbury, West Brompton and Waterloo align; and then Fulham Broadway, Pimlico and Lambeth North. The northern branch of the Bakerloo line aligns vertically with the Hammersmith & City line, the DLR into Stratford International aligns diagonally with the Overground line above it.  Across the top of the map, Watford, Watford Junction, High Barnet, Enfield Town and Chingford all line up perfectly. This intentional alignment creates an invisible grid that standardises and unifies the whole map.

Other smaller changes:

Inclusion of Crossrail wasn’t as hard as I expected, although the “mega-stations” at Farringdon/Barbican and Moorgate/Liverpool Street are pretty unwieldy. I did manage to keep it dead straight between Bond Street and Whitechapel, which is nice. Added bonus: the return of Beck’s beautiful “TO” box to indicate stations off the western edge of the map.

Some more accurate station location, especially at the eastern end of the Victoria line, where the Overground line is now correctly shown to the south of Seven Sisters, not the north. Bethnal Green and Shoreditch High Street Overground stations are now located in the correct place relative to the Central line. The Overground passes between St. Johns Wood and Swiss Cottage on its way to Euston.

General straightening of Overground lines, especially from Canonbury to Stratford and the whole southern orbit from Clapham Junction to the (soon to open) New Bermondsey station. The loop into Clapham Junction from Imperial Wharf mimics the real-life layout of the station and helps to reinforce that you have to change trains there, but may be a little bit overbearing. I’ll have to think about that one.

White strokes separating route lines when they cross but don’t otherwise interact. The official map does this inconsistently, so I decided to carry it across the whole map. I think it works, especially in the north-east part of the map where a lot of routes cross over each other.

Removal of interchange circles at stations where the interchange is only with National Rail. The NR arrow does the work here, and it’s ridiculous to have an interchange circle sitting on a single Underground line by itself, like what used to be at South Ruislip. Note also that I’ve removed the ridiculous north-western alignment of the Piccadilly/Metropolitan lines west of Rayners Lane.

More accurate drawing that adheres to the design rules of the map better. At Earl’s Court, I was able to  expand the District line curve around to Kensington (Olympia) into a proper 3x-radius half-circle, unlike the official map, which cheats its little heart out to make things fit (see below).

Really little things: Throwback water lines on the Thames. Routing information on the map for London Fields and Cambridge Heath Overground stations. Lord’s cricket ground. Abbey Road clarification in the legend. Flipping the river service and coach icons so they’re travelling to the right of the map (forwards with our left-to-right reading logic), rather than to the left.

You’ve made it this far? Congratulations, here’s a couple of before-and-after views for you to finish things off! The first gives a general comparative overview of the two maps, and the second rejoices in the fact that I made the “thermos flask” completely symmetrical (though it’s more of a “wine bottle” now, I think!)

See also my further notes on the map’s design.


Tube Teaser…

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I’ll just leave this here for now… more details real soon!

Submission – Official Map: Metrolink Commuter Rail System, Southern California

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Submitted by SounderBruce, who says:

The fairly new Metrolink map I came across caught my eye because of the way LA Metro is integrated, showing the termini of lines that don’t even come close to touching Metrolink’s network. Also of note is the prominent inclusion of the Amtrak Surfliner and the Coaster/Sprinter further south.

Transit Maps says:

When your commuter rail system spans six populous Southern Californian counties, it’s a nice touch to indicate how you interface with other transportation options. So the inclusion of these other rail systems on this map (designed by CHK America, who else?) is very welcome indeed, especially the Amtrak Pacific Surfliner, which actively supplements Metrolink services along the LOSSAN (Los Angeles–San Diego–San Luis Obispo) rail corridor.

You could almost say that the inclusion of the LA Metro is simply to fill up a large and otherwise empty space on the map–  as it really only interchanges with Metrolink at Union Station and Chatsworth (at the end of the Orange Line)  – but it’s nice to be reminded of the major rapid transit option in the area. The placement of the North Hollywood Metro station perhaps makes transferring to Bob Hope Airport look a little easier than it might actually be: they’re about three miles apart, although there are decent connecting local bus services.

The map itself is nicely executed: clean, simple and diagrammatic. County lines and future stations are both nicely integrated, and there’s a good flow to the whole thing. Perhaps the blue used for the ocean is a little too dark, but that’s a very minor observation.

Our rating: A nice, competently drawn overview of Metrolink and complementary rail services. Three-and-a-half stars.

Source: Official Metrolink website (in “All Routes” PDF)

Official Map – Metro Map of Ekaterinburg, Russia by Ilya Birman and Pasha Omelekhin

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Submitted by Ilya, whose previous work has been featured here on the blog.

Figuring that a schematic diagram of a single line subway system is little more than a glorified list (which is basically true), Ilya and Pasha have instead created a rather lovely stylised – but geographically faithful – map of Ekaterinburg’s simple Metro system. In a way, it reminds me of turn-of-the-20th-century railway maps, where the route lines would literally be overprinted onto an existing street map of the city. 

The bold black route stands out perfectly from the subtle shades of the background, which includes streets, parks, the river Iset (beautifully rendered) and the most prominent landmark of all, the abandoned and unfinished 220-metre tall TV Tower. Exits are shown and numbered for each station, and a full list of connecting buses, trolleybuses and trams is also provided – useful information! My only minor complaint is that the grey text used for the Roman transliteration of each station’s name is perhaps a little light, especially at Geologicheskaya, where the background is the most detailed. I’d also like to see the transliteration directly adjacent to the Cyrillic name, rather than being separated by the connecting services information, just to reinforce their relationship to each other.

Our rating: A lovely solution for a small single-line system. Pleasing to look at and full of useful information. Four stars!

Source: Ilya’s project website

Before and After – Karlsruhe’s Transit Map Goes All Curvy!

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Big news out of Germany, where Karlsruhe’s KVV becomes one of the first European transit agencies to adopt a fully curvilinear diagram instead of the almost ubiquitous octolinear “Beck-style” diagram. The new map is shown here, with the old map for comparison beneath it. 

The old one is a solid, well-executed map, very much in the usual German style of transit map design – although perhaps a little too indistinguishable from many other very similar maps (Frankfurt, Munich, Berlin, et al). Personally, I don’t see much wrong with it at all, though it’s certainly not exceptional.

The new one… well, I don’t know. It certainly stands out simply because of its unusual design! Maxwell Roberts (name-checked in KVV’s press release about the new map, now deleted) champions the curvilinear map, and has done some pretty extensive usability tests showing that route finding can be performed faster with them, but I just can’t warm to their aesthetics. They just always look really messy and disorganised to me, which isn’t what I want from a map that’s meant to be representing sleek and modern transportation services.

Definitely interested in hearing others’ thought on this. What do you think of this new curvy transit map?

Washington DC Metrorail Snow Service, Monday 25th January, 2016 

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Submitted by Mark Greenwald, this map shows the reality of trying to operate rail rapid transit after a major blizzard – it’s underground or nothing, it seems! Map by the erstwhile Peter Dovak.

Source: Metrorail Info Twitter feed

Question: Do You Have a Map of London Transit Now That TfL Have Taken Over All Suburban Rail?

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Got this question from an anonymous follower:

Would you have or be able to mock up a map of what the London transit map would look like now that TfL have taken over all suburban rail traffic?

For those not in the loop, Transport for London (TfL) will be bringing the operations of all the various train franchises that currently provide suburban or commuter rail service in the Greater London area under the “Overground” umbrella as their contracts expire. This means the changeover will be staggered up through 2019 or 2020, so any new unified map will change incrementally. But basically, the map below (available on the TfL website here) already shows the system, and it’s quite the tangled web.

Of course, the fact that all the rail services will be branded as the Overground has caused many to wonder if all these myriad lines will be recoloured in that service’s distinctive orange. (Dear god, I hope not!) I would like to think that the Overground and Underground will be separated out into two distinct maps, as (as the image above shows), the whole network is too much for the genteel old world style of the Beck map to handle.

Maybe TfL’s map designers might just lose their minds:

Submission – Official Map: Rapid Transit of Cleveland, Ohio, 2016

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Submitted by Phil K, who says:

On my recent trip to Cleveland, I had a chance to check out their new rapid transit system map, and was pleasantly surprised. It’s not perfect, but it’s a pretty big upgrade from the previous version (reviewed July 2012, 1 star).

A few major changes to note:

  • Awkward angles have been straightened and geography has been simplified even further in in favor of a more schematic approach; this is particularly noticeable on the waterfront Line and the eastern portion of the Red Line
  • They’ve transitioned away from the awful multi-coloured line transfer nodes to a more uniform, black transfer node/lozenge
  • Though I’m not a huge fan of diagonal station labels, the new labels are also a big upgrade from the previous, haphazardly-placed leder line and inconsistent spacing approach
  • They’ve also removed the far-too-dominant “P” at the park and ride stations, opting instead for a clean icon placed consistently on the opposite side of the node from the station label

I’m not loving the increased size type for terminus stations, particularly for Tower City-Public Square, but I suppose they serve as a bit of an orienting feature. The terminus stations – and especially the Tower City hub – are very heavily referenced throughout the system on other wayfinding signage, so they are definitely strongly-embedded in riders’ mental maps.

I also don’t care for the bubble labels on the HealthLine and Cleveland State Line BRTs, as I think these could have easily been explained by the legend, but the labels aren’t egregious.

Overall, despite some flaws, I think this is a major step up from the previous version. It’s clean and communicates just enough information in its simplified format to be useful without being overly designed. 


Transit Maps says:

This is a pretty accurate summation from Phil – the map is much improved from the previous version, but still isn’t outstanding. I know that Tower City-Public Square is an important transportation hub and a defining part of Cleveland itself, but that label size is simply ridiculous

Some more consistency in the labelling of the stations could have been good: they’re horizontal on the Red Line down to the airport, but angled on the Waterfront section of the Blue/Green lines – seemingly to avoid clashing with the coastline, but that could easily be avoided with some reworking. I do give credit for the consistent and regular placement of the parking icons, though.

The inclusion of the two “rapid” bus routes is still pretty desultory: the Cleveland State Line doesn’t even join onto the main trunk properly, so I’m not sure of how it actually interfaces with the other lines. If it goes to Public Square, then that needs to be shown properly. 

Also, the legend for the map describes these two routes in possibly the most confusing way ever: “These routes operate on the roadway.” Wait, what? All the other routes are trains, so are these also trains, but running down the middle of the street? It’s all very weird, and it almost seems that the map is intentionally trying to not refer to these lines as bus routes. Mode stigma is alive and well in Cleveland, it seems.

Our rating: Definitely an improvement, but there’s still a way to go to be really good. Two-and-a-half stars.

Submission – Historical Map: “The Short Way” Lines Map, Michigan, 1935

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Submitted by xoverit, who says:

There was one other map inside of the 5 August 1935 Michigan Official Motor Bus Guide, and it’s quite different [to the Eastern Michigan Bus map previously featured – Cam], though suffering from the same cheap paper. Charmingly over-ornate, my favorite detail is that Poseidon seems to have taken up residence off of the Sleeping Bear Dunes.

As for the map’s practical purpose, I guess it gets the job done. And the other bus lines shown (without any specifics) at least show where you could go once you’ve reached the end of the service of the Short Lines (which are indeed short).

Transit Maps says:

I think this map is absolutely delightful, full of charming little details and excellent illustrative work that puts it far above the other map you sent me previously. Although it predates it by about 20 years, the style of the map reminds me greatly of Pauline Baynes’ illustrations and maps for C.S. Lewis’ The Chronicles of Narnia, which is never a bad thing in my eyes.

Each of Michigan’s major cities is represented with an appropriate icon – Detroit as a thriving metropolis, Pontiac is represented by its eponym, Ann Arbor by the Big House (then only 8 years old and in a horseshoe configuration, apparently), Battle Creek by a cannon, and Grand Rapids by… a comfortable living room setting. This seems very odd until you remember that Grand Rapids was a major furniture manufacturing centre at the time, even earning the nickname of “Furniture City”. Look around and you’ll see plenty more details like this, like the convict breaking rock near Ionia!

Our rating: A charming and breezy illustrated map, full of historical interest. Quite lovely. Four stars!

Fantasy Map: “Arabi City” Metro by Max Krueger, Age 5

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Submitted by Max’s proud dad, Charles, who says:

Sorry to be the doting parent, but I couldn’t resist submitting this map by my 5 y.o. son, Max, tangentially in connection with recent discussions of Philadelphia, as this is where we live and on which Arabi City is loosely based. But there are also stations from Jersey City, New York and the names of Max’s kindergarten classmates.

I think we can criticize his non-standard choice of font and the irregular pattern of the metro lines themselves. Also, Arabi City is behind in its program to make all its stations ADA-compliant – and this is given a cursory treatment in the map, as well. Still, I think this is a decent first off attempt from a young, creative mind. How many stars?


Transit Maps says:

Awesome work, Max! Keep this up and you’ll be a fine map-maker in the years to come. It’s a lot of fun to look at all the station names and wonder what your inspiration was. I see that Barnes & Noble has a station just for itself – that’s pretty neat. I wish my local bookstore had its own subway station, although the streetcar does go pretty close to Powells, a famous bookstore here in Portland.

You’ve done a good job with fitting the names of the stations onto the map, only using two directions for the type – across and up. Lots of real subway maps have text going all over the place and I think it looks really messy when people do it like that. You also have great handwriting for a five-year-old! My son is also five, and he likes to write his letters REALLY BIG. His name is Ryden: he thinks that maps are silly, and he would much rather go and build Lego instead.

I also really like your little wheelchair icon: it helps people who can’t use stairs work out where they can take the train to. Maybe the people of Arabi City can tell the mayor that they’d like more wheelchair-friendly stations that can help these people get around better?

I really like your map, Max, and I hope you think of even bigger, more exciting ones in the future! I give this 5 stars for creativity – keep up the great work!

All the best,

Cameron from Transit Maps