The set of data, presented in the table, illustrate the information about Date opened, length, and number of passengers of subways in London, Paris, Tokyo, Washington DC, Kyoto, and Los Angeles.
Overall, underground railway systems in London, Paris, and Tokyo older, longer and attend more people than in the other three cities. The youngest subway is in Los Angeles and the oldest one is in London, which is the longest one too. The busiest underground is located in Tokyo.
The tube in London has opened in 1863, and it is the longest one among the others given in the table (394 km). Every year this kind of public transportation use 775 million people that is approximately 2.5 less than in Tokyo. When, in Tokyo, its length is 155 km than is half of one in London. The subway in Paris has built in 1900 and attracts 1191 million passengers annually.
The youngest subway in the table was opened in 2001 in Los Angeles, it takes just 28 km, and 50 million people use it every year. While the shortest one is in Kyoto – just 11 km in length. However, it is attracted 45 million passengers. 144 million users choose Washington’s underground railway system that has opened in 1976.