The table shows data about underground railway systems in six major cities with data opened, kilometers of route and passenger numbers per year in millions.

The table illustrates data

of

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from

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six important cities over the world, which are

London

, Paris,

Tokyo

,Washington DC ,Kyoto and Los Angeles, which

are providing

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provide

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undergroud transportaion

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underground transportation

.

This

data is

eing

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being

compared through three factors which are the open date of the

system

, the

distance

and the

number

of passengers who are visiting the

system

yearly. It is clear from the table that there

fluctuations

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are fluctuations

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in the

number

of

visitors

, the

traveled

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travelled

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distance

and the

numbe

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number

of years of the

system

's

existance

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existence

. There is a

noticable

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noticeable

difference between the

Tokyo

system

and

London

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the London

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system

.

London

system

is more ancient than

Tokyo

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the Tokyo

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system

which were built in the

year

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years

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1863 and 1927 respectively.

However

,

Tokyo

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Tokyo's

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underground

railways

are more used by their passengers which have almost 1927

millions

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million

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per year

in contrast

to

London

's

railways

which have nearly 775

millions

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million

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passengers yearly.

The

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A

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closer examination of the figures for

London

's underground

system

reveals the longest

distance

at

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of at

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least 394

kilometers

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kilometres

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.

On the other hand

, Kyoto's underground

systems

have the shortest

distance

which is around 11 kilometers of route.

Also

, they have the lowest

number

of

visitors

yearly in comparison to

other

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the other

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five mentioned

systems

.

However

, Los

Aneles's

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Angeles's

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railways

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railway's

railways'

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systems

are the newest

system

which

were

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was

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built in 2001 and

occupy

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occupies

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a rank of two in the lowest

number

of

visitors

after Kyoto's

system

which are about 50 and 45

millions

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million

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visitors

per twelve months respectively.

This

table shows that there are some underground

railways

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railway

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systems

that need to be extended

due to

the large

number

of

visitors

they have despite they are very old

systems

.