Tokyo Metro is responsible for transporting eight million people on a daily basis. The metro company of the Japanese capital ranks third on the list of largest metro companies, in terms of passenger numbers, stations, and the total length of railway tracks — just behind New York and Paris. With the responsibility of having to operate on such a grand scale, time is of the essence.
The most common means of transportation in Tokyo is the subway, which is operated by two independent companies, Toei Subway and the aforementioned Tokyo Metro. The metro network consists of 13 lines, with the Toei Subway operating four and the Tokyo Metro responsible for nine lines, which are 120-plus miles in length.
