The provided table illustrates the underground railway systems in six different cities, detailing their opening year, route length, and annual passenger numbers.
Overall, it is evident that the older railway systems in London, Paris, and Tokyo have longer routes and significantly higher annual passenger counts when compared to the more recent systems in Washington DC, Kyoto, and Los Angeles.
London, with its inauguration in 1863 and a route length of 394 kilometers, boasts the oldest and lengthiest underground railway system among the six cities. In contrast, the systems in Paris and Tokyo, established in 1900 and 1927 respectively, have routes of less than 200 kilometers each but cater to the largest annual passenger volumes, with Tokyo leading at 1927 million and Paris following at 1191 million. On the other hand, Kyoto and Los Angeles, being the most recent additions to the list, have the shortest routes of 11 and 28 kilometers correspondingly, serving the smallest number of passengers annually at 45 and 50 million. When compared to the aforementioned systems, the Washington DC network, spanning 126 kilometers, supports a relatively higher annual passenger count of 144 million.