The table illustrates the underground rail network in six major cities.
Overall, the oldest systems were London, Paris and Tokyo had the larger size and server considerably well more movers than the new systems that include Washington DC, Kyoto and Los Angeles.
About the time opened, the oldest systems were situated in London since 1863. At once, this is also the system was largest with 394 kilometers of route, but the passengers using to move per year lower than the Tokyo – member reach the third about size – about 1000 millions people with 775 millions movers. While the second city about the length of route was Paris, less London about 3 times, with 199 kilometres of route , however, it serves more people per year.
With 3 cities had new systems , the Washington DC underground was the most extensive, with 126 kilometres of route, compared to Kyoto and Los Angeles systems was around 11 kilometres and 28 kilometres respectively. Los Angeles was the newest cities in 2001 constructing railway but having the amount of passengers more than Kyoto with 45 million people per year.