city: 2k540 AKI-OKA ARTIZAN

この間、補給食を買いに御徒町まで行った時、改札でふと、このサインに気がつきました。

I noticed this sign at JR Okachimachi station exit when I went to buy supplements the other day.

駅員さんに尋ねても、「いや〜、知らないねぇ。いつからあったかなぁ…？」と。あらら…

I asked what it is a station staff, but he has no idea whatsoever. "I don't know about it at all. When this is set up there? "

でも見るからに線路沿い・高架下な感じなので探しに行くと…

But it seemed that there must be something near there, so I started look for in its neighborhood, then...

ありました！　高架下が綺麗にお化粧されて、小さな街ができています。

found it! An under the JR track was cleaned up and get painted with white to become a small town.

2k540 AKI-OKA ARTIZANという名前だそうです。

最初の5ケタの読みは「ニーケーゴーヨンマル」、意味は「鉄道用語では東京駅を起点とした距離『キロ程』で場所を示します。当該施設は2k540m付近にあるため『2k540』とし」ているそうです（公式HPより）。

Their name is "2k540 AKI-OKA ARTIZAN."

The first five digits is read "knee-kei-go-yon-maru," it means that to indicate a place it's always start from Tokyo Station by railway technical terminology. And this place is located around 2km and 540m from there. That's why (from official website).

明後日12月10日金曜日、13:00オープンです。

They will be open at 13:00 on this Friday.