In the given bar chart shows the information about six major city underground railway systems with regard to it's size, age of the station and travelers in million per year.
It is clear from the chart that, the oldest three railway stations are the biggest in size of stations and handling the highest travelers per year. Though Paris is the second oldest station and only the two third of the route size of London station, it carries more people, 1191 million people per year, than London system. At the same time Tokyo, being the least among the three oldest stations, in terms of age and size of route, it serves the highest number of people compared with London and Paris. In other words, Tokyo railway system carries 1927 million people per year where as it is 1190 million people per year by Paris system and 775 million people per year by London system.
When comparing the newest three stations, which are Los Angeles, Kyoto and Washington DC respectively, the oldest among the three Washington DC commute more people per year that is 144 million. It is nearly double of the passengers in comparison with Kyoto, which is handling only 45 million people per year.
In short, Kyoto is the smallest of routes and handled people per year, which are 11 kilometers and 45 million people respectively. On the contrary, the station Tokyo, is serving the highest number of people per year.