The table provides data about the opening years, total route lengths, and annual passenger numbers of underground railway systems in six cities.
Overall, London has the oldest and longest system, while Kyoto has the shortest and serves the fewest passengers annually.
London’s railway system began in 1863 and has the longest route, stretching 394 km and transporting 775 million people each year. Paris, which opened in 1900, has the second-longest network at 199 km and serves 1,191 million passengers annually. Although Tokyo’s network is slightly shorter at 155 km, it has the highest number of passengers, with 1,927 million people using it per year. Washington, D.C., opened in 1976, has a 126 km network and carries 144 million passengers.
The remaining two systems, in Kyoto and Los Angeles, opened in 1981 and 2001 respectively. Kyoto has the shortest route at just 11 km and serves 45 million people yearly. Los Angeles has a 28 km network and transports about 50 million passengers annually.