Ben Yakas, writing for the Gothamist, explores the history of the colour scheme in New York’s subway map. It explains why the map doesn’t always use unique colours to designate lines in the Subway network. Granted, New York’s Subway system has more individual lines than London’s Tube network, but I find London’s map easier to use. Unique colours mean I can trace a line on the map to see where it’s going, and wayfinding inside stations is easier, too; I can follow the right colour to find my platform. (via The Map Room)