The table illustrates the underground systems in six cities. 
Overall
, we can see that the New York Linking Words
City
 Use synonyms
Subway
 and Beijing Busway have more Use synonyms
lines
 and total lengths but neither of them has the highest cost of a ticket. Use synonyms
Then
, the Beijing Linking Words
subway
 has the highest annual journey compared to other Use synonyms
subway
 systems.
It is possible to separate the cities into two groups Use synonyms
Firstly
, the Linking Words
metro
 system with  Use synonyms
lines
 of more than 15 which is the New York Use synonyms
City
 Use synonyms
Subway
 Beijing Use synonyms
Subway
 and Paris Use synonyms
Metro
 have a high total length except for Paris Use synonyms
Metro
 the lowest of the six cities. Use synonyms
Then
, Beijing underground has the greatest number of users in a particular year. 
Linking Words
Lastly
, the three remaining towns have fewer than 15 Linking Words
lines
 Use synonyms
such
 as the Tokyo Linking Words
Subway
, Mexico Use synonyms
City
 Use synonyms
Metro
 and London Tube with 13 12 and 11 Use synonyms
lines
 respectively. Use synonyms
In addition
, the London tube has the lowest annual journeys at 1.2 billion followed by Mexico Linking Words
City
 Use synonyms
Metro
 at 1.6 billion. Interestingly, the London Tube is the costly Use synonyms
subway
 than the other towns around 7.30 US dollars.Use synonyms