What is the role of あるいて?


> 駅からは歩いて十分ぐらいです。  
>  It takes 10 minutes on foot from the station.

The confusing part is the 歩いて.  
Is あるいて a noun? What is its role?




歩いて is the te-form of the verb 歩く, and means "on foot". Of course the te-form
usually connects to another verb, but the te-form of some words (seem to) have
idiomatic usage which can be used on its own. (As a native speaker I haven't
learned Japanese grammar systematically, so I may be wrong...)

  * もって3日だ。 (Someone can bare/survive) for three days _at most_.  
(This もって is the te-form of 持つ or 保つ [in this
sense](https://japanese.stackexchange.com/a/29019/5010), and used
idiomatically to mean "even if one hangs on")

  * [まして](http://jisho.org/word/%E6%B3%81%E3%81%97%E3%81%A6) let alone / not to mention
  * 従って therefore

In the case of 歩いて, I think you can also think 行くと or 行けば is omitted after 歩いて
(i.e., 歩いて **行くと** 10分です).




歩いて is the te-form of the verb 歩く, and means "on foot". Of course the te-form
usually connects to another verb, but the te-form of some words (seem to) have
idiomatic usage which can be used on its own. (As a native speaker I haven't
learned Japanese grammar systematically, so I may be wrong...)

  * もって3日だ。 (Someone can bare/survive) for three days _at most_.  
(This もって is the te-form of 持つ or 保つ [in this
sense](https://japanese.stackexchange.com/a/29019/5010), and used
idiomatically to mean "even if one hangs on")

  * [まして](http://jisho.org/word/%E6%B3%81%E3%81%97%E3%81%A6) let alone / not to mention
  * 従って therefore

In the case of 歩いて, I think you can also think 行くと or 行けば is omitted after 歩いて
(i.e., 歩いて **行くと** 10分です).

