The table illustrates information about underground railway systems of different cities.
Overall, kilometers of route for Kyoto and Los Angeles were significantly lower than those other four cities. And the number of passengers per year for Tokyo and Pairs was dramatically larger than others, especially in Tokyo.
London recorded 394 kilometers of underground railway route that opened in 1863, the longest length of all cities. By contrast, these figures for Pairs and Tokyo were shorter than London, at 199 kilometers opened in 1900 and 150 kilometers opened in 1927. However, it experienced an opposite volume of passengers, Tokyo witnessed the highest number of passengers per year at 1927 million, although having the lowest of route length of these three cities. Followed by Pairs and London, passengers per year of London experienced the smallest number of passengers per year at only 775 million, compared with 1191 million for Pairs.
In terms of the remaining cities, the length of route of the underground railway systems were 126 kilometers for Washington DC, 28 Kilometers for Los Angeles started in 2001 and 11 kilometers for Kyoto started in 1981, the lowest length among all. In comparison, there were similar numbers of passengers per year, standing at 45 million for Kyoto and 50 million for Los Angeles. The figure for Washington DC stood the largest number of cities at 144 million when it opened in 1976.
