London Overground topological network map. Letters designated to routes are not official, these are applied by the author for easier identification in this map only. The SVG source provides a switch for hiding/showing the fare zones in the background. Clicking the line or the line name in the key will highlight the line in question in blue. This effect can be cancelled globally by clicking the background/fare zones. These functions are not available to the PNG or PDF versions.
Own work
user:Sameboat