At Tokyo Metro, we place easy-to-understand information signs and boards of a uniform design in all stations.
When getting on a train, look for the blue sign. To exit, look for the yellow sign. For details, please see the following page.
【Before Getting on the Subway】http://www.tokyometro.jp/en/tips/metro/before.html
【Getting off the Subway】http://www.tokyometro.jp/en/tips/metro/after.html