Question

. in doing this it not only makes things pleasant for the travelling public,but performs an important social service. *

[ Remove - not only but also ]

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Answer 1

. in doing this it makes things pleasant for the travelling public,performs an important social service. *

Answer 2

The sentence given in the question is -

In doing this, it not only makes things pleasant for the travelling public, but also performs an important social service.

The conjunction "not only... but also" is used to highlight two similar aspects of a particular thing or event. In this case, an action results in making "things pleasant for the travelling public" along with perform "an important social service". Therefore, we can replace "not only... but also" with the phrase "as well as". So the final sentence will be -

In doing this, it makes things pleasant for the travelling public as well as performs an important social service.