The table presents data on three aspects of underground railway operations across six nations. Overall, older systems tended to have longer routes, but this did not necessarily correspond to the higher passenger numbers.
The data table depicts the underground railway transportation of six countries including their route in kilometres and passengers in millions along with their opening date.
The table displays the date opened, the number of kilometres and the number of passengers each year in millions for subway systems in various cities. Looking from an overall perspective, it is readily apparent that the e