This web page has a tiny bit of Javascript, SVG and CSS in it.  This makes your browser load (via AJAX) the live an unmodified local copy of an SVG tube map on the TfL website (view source for details). The additional bit of SVG/CSS specifies a free/open font (Hammersmith One from Google Fonts), font size and scaling factor, so that the SVG looks much better. I'm showing a CSS dashes/flashing animation on sections of lines that are currently disrupted, using the live data API from TfL. Refresh your browser for the latest data. More tube data visualisations at TubeCreature, and other projects at oobrien.com. The SVG does not display correctly in Firefox due to the different (purer?) way this browser implement display of SVGs.