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So we built Ashioto, meaning "footstep" in Japanese,
所以我們構建了“Ashioto”系統，在日語中意思是“腳步聲”，
as it consists of a portable mat which has pressure sensors which can count the number of people walking on it,
這種墊子便攜而且自帶壓力傳感器，可以計算出行走的人群數量，
and sends the data over the internet to the advanced data analysis software we created.
還能把數據通過互聯網傳遞給我們構建的數據分析軟件。
The possible errors, like overcounting or double-stepping, were overcome using design interventions.
可能存在的諸如過度計算或重復計算腳步的誤差，也通過干預措施被消除了。
The optimum breadth of the mat was determined to be 18 inches,
墊子的最佳寬度被設計為18英寸，
after we tested many different versions and observed the average stride length of a person.
這是在測試了許多不同版本，以及計算人們步伐的平均跨度之后。
Otherwise, people might step over the sensor.
不然人們可能會跨過傳感器。
We started with a proof of concept built in three days, made out of cardboard and aluminum foil. It worked, for real.
然后我們開始對花費了三天時間，用紙板和鋁箔制做的傳感器進行概念測試。方法奏效了，真的。
We built another one with aluminum composite panels and piezoelectric plates,
我們用鋁復合板和壓電版做了另外一塊，
which are plates that generate a small pulse of electricity under pressure.
可以在壓力下產生小電流脈沖。
We tested this at 30 different pilots in public, in crowded restaurants, in malls, in temples, etc., to see how people reacted.
我們在30多個不同的公眾場合測試了這個裝置，在擁擠的餐廳，商場和寺廟等等，來了解人們的表現。
And people let us run these pilots because they were excited to see localites work on problems for the city.
人們同意我們進行這些測試，因為他們非常樂于看到有當地人在解決城市問題。
I was 15 and my team members were in their early 20s.
我當時15歲，團隊的平均年齡也就是20出頭。
When the sensors were colored, people would get scared and would ask us questions like, "Will I get electrocuted if I step on this?"
但給傳感器上色后，人們開始覺得害怕，并問我們諸如此類的問題，“走在上面，會不會被電到？”
Or, if it was very obvious that it was an electronic sensor on the ground, they would just jump over it.
或者，如果在路上遇到很明顯是電子傳感板的東西，他們可能會跳過去。
