The given chart compares and contrasts data on the differences between the length of routes and the number of passengers about the subway systems in six metropolises in the beginning days.
By and large, as clearly shown in the table, there was an overwhelming majority of passengers who used the underground railway in three types of old cities rather than the latest ones.
A deep analysis of the chart reveals that the subway system in Tokyo appealed by far the most passengers at the outset in 1927, at an impressive 1927 travelers with 155 kilometers of route. It is noticeable that from the middle of the 19-century, the underground railway system of London was the longest route over the other cities, at a whopping 349 km, which was nearly two times higher than that of Paris. In contrast, a vast number of passengers who traveled by the Paris underground accounted for 1191 in the last century, whereas that of London one was recorded as just nearly 800 clients.
Shifting the focus to the other three megalopolises, there was a tiny minority of passengers who went on Kyoto subway at the beginning, at roughly 45 people, which led to the least of 11 kilometers of route. Noticeably, Washington underground is more popular than Los Angeles one, with 144 and 50 travelers, respectively.