The table lists different information about the system of underground railway in six different nations.
Overall, the underground railway system was first opened in London, having the longest route of all systems, while Los Angeles system is the newest. Tokyo underground railway carries the most passengers per year, whereas Kyoto railway covers the least kilometers in its route.
Paris railway underground system was the second to be opened in 1900, traveling 199 kilometers, standing at the second level to London system which travels 394 kilometers. Kotyo system, on the other hand, travels the least distance of 11 kilometers. This is followed by Los Angeles railway, as the second least distance covered.
Tokyo underground train carries the highest passenger number per year, standing at 1927 million passenger. Following is Paris railway, at a rate of 1191 million passenger per year. Washington DC, Los Angeles and Kyoto carry the least number of travelers accounting for 144, 50 and 45 million passenger per year, respectively.