The table below gives information about the underground railway systems in six cities.

The table shows data about the underground rail networks in six major cities. It compares the six networks in terms of their age, size and the number of people who use them each year.

It is clear that

the three oldest underground

systems

are larger and serve significantly more

passengers

than the newer

systems

. The London Underground is the oldest

system

, having opened in 1863. It is

also

the largest

system

, with 394

kilometres

of route. The second largest

system

, in Paris, is only about half the size of the London underground, with 199

kilometres

of route.

However

, it serves more people per year.

While

the Tokyo

system

is only third in size, it is the most easily used, with 1927 million

passengers

annually. Of the three newer networks, the Washington DC underground is the most extensive, with 126

kilometres

of route, compared to only 11

kilometres

and 28

kilometres

for the Kyoto and Los Angeles

systems

. The Los Angeles network is the newest, having opened in 2001,

while

the Kyoto network is the smallest and serves only 45 million

passengers

per year. In short, the latest railway

systems

serve fewer

passengers

than the oldest,

due to

the large gap between the

kilometres

of their routes.