Underground Railways systems in six cities

The provided infographics illustrates the statistics of underground railway systems in six cities(London, Paris, Tokyo, Washington DC, Kyoto, Los Angeles).All in all, London railways system is the oldest one dated back 1863 whilst the Los Angeles railway lines are the newest one.
According to the given statistical chart, the railway systems in london dated back 1863 are having the longest route of 394 killometers and carries upto 775 million travelers per year.The railway lines in Los Angeles are the bewest one which were available and opened in 2001. Highest number of passengers facilitated with travelling was by tokyo railway systems transporting an approximate of 1927 million riders per year.All in all, Kyoto railway systems have the shortest route of 11 killometers providing travel services to 45 million travelers per year.As a whole the trend of using underground railway sytems is hitting a gradual decline after 1927 with the passage of time.