{
  "fields": [{"id":"_id","type":"int"},{"id":"年度[西暦]","type":"text"},{"id":"道路反射鏡[本]","type":"text"},{"id":"歩行者用防護柵[m]","type":"numeric"},{"id":"転落防止柵[m]","type":"numeric"},{"id":"道路標識[本]","type":"numeric"}],
  "records": [
    [1,"2021","852",56556,2227,568],
    [2,"2022","868",57274,2223,582],
    [3,"2023","889",57821,2225,590],
    [4,"2024","891",59679,2116,604],
    [5,"2025","884",59794,2398,612],
    [6,null,null,null,null,null],
    [7,"令和7年度港区行政資料集　交通安全施設数（各年度4月1日現在）","Ver202504",null,null,null]
]}