Colour and the New York Subway Map

Gothamist looks at how colour has been used on maps of New York’s subways: first to to distinguish between subway companies, then to distinguish lines from one another. The post talks to, and draws on the work of, Peter Lloyd, who’s been studying the history of subway mapping in New York and gave a talk last Saturday on the subject of colouring the map’s subway lines. See Peter’s blog post on the subject from this time last year.