London Underground geographic maps
A series of geographic maps of the London Underground in the LU house-style have been made by ed g2s • talk and James F.. These images are based solely on GPS data, which is in the public domain, and they are available under the GFDL.
Creation process 
A PHP script processes the line definitions to create list of stations on the line, calculates coordinates of the control points for bézier_curve, and then outputs the graphic as an SVG file. The SVG files are then fine tuned in an SVG editor (text placement, mostly) and rendered as PNGs.
more detail to come
Resultant maps 
Individual lines 
Overall maps 
Northern Line Explosions and Shooting (SVG)
To do 
- Correct the spelling of "Harrow & Wealdstone" on the map.
- Extend to Watford Junction (when the planned extension occurs at currently unspecified date)
- Correct the location of Edgware Road station, as it is to the north of the station serving the Circle, District, and Hammersmith & City lines, not the south.
- Move Willesden Junction to zone 2/3
- Update to new route
- Show Shepherd's Bush as an interchange with National Rail
- Show White City as an interchange with Wood Lane on the Hammersmith & City line
- Hammersmith & City
- Add Wood Lane and show it as an interchange with White City on the Central line
- Change "Shepherd's Bush" to "Shepherd's Bush Market"
- Find a way of showing that it doesn't serve the stations between Finchley Road and Wembley Park without separating or distorting the routes.
- Add Croxley link to Watford Junction if it opens
- Create map including the abandoned extensions from the New Works Programme and Sutton extension.
Presumably Mornington Crescent is on the Charing Cross branch (Left-hand branch) of the line, rather than the Bank branch (Right-hand branch) as the map suggests?See talk page.
- Correct the spelling of Piccadilly Circus.
- Waterloo & City
- Add updated map as per Wikipedia page
- Add Langdon Park
- Add Woolwich Arsenal
- Add updated map as per Wikipedia page
- Line changes
- Heathrow T5
- DLR extension to Statford International.
- Other lines
- London Overground (en:Northern City Line, en:North London Line, ...) and lines-to-be (en:Crossrail, ...)
- Non-LU mid-London lines (Thameslink, ...)
Remove East London Line for 2008; re-add with extension, without Shoreditch, in 2009.Not necessary
- General design
- Change zones A - D to 7, 8 and 9
- Integrate with Google Maps
- Suggest adding M25 to "London Underground Full map" to improve context. Also to demonstrate inherent northernwards bias of tube line distribution.
- Add mid-station control points - i.e. the Piccadilly line should bend sharply twice between Knightsbridge and South Kensington, the Jubilee line takes a significant eastward curve between Baker Street and Bond Street, and the Northern and Bakerloo lines don't actually share track as they cross the river. The 'find location' map browser of the journey planner on the TfL website shows the underground line routes as dotted lines (http://journeyplanner.tfl.gov.uk/)
- Put station markers where the platforms are rather than the surface entrances? There are big differences for some stations. The maps could show platform locations, with little blobs-on-sticks showing the associated entrance(s).
- Perhaps include closed lines in overall map, represented by semi-transparent lines.
- Include distances.
Planned changes 
- Piccadilly line: Heathrow Terminal 5 extension.
- Hammersmith & City line: new station at Wood Lane and Shepherd's Bush re-named to Shepherd's Bush Market.
- DLR: Woolwich Arsenal extension
- Circle line: line extended onto the Hammersmith & City line
- East London line/London Overground extension to Dalston Junction, Crystal Palace and West Croydon.
- DLR: Stratford International extension
- London Overground northern extension from Dalston Junction to Highbury & Islington.
- London Overground western extension from Surrey Quays to Clapham Junction
Source data 
Source code 
Here is the script used to generate the rough maps. It generates Bezier curves that smoothly fit the points, and station markers on both sides (when not a dot), so each map will require a manual clean-up.