{
  "fields": [{"id":"_id","type":"int"},{"id":"市町村コード","type":"text"},{"id":"都道府県名","type":"text"},{"id":"市町村名","type":"text"},{"id":"地域","type":"text"},{"id":"年度","type":"text"},{"id":"路線数","type":"text"},{"id":"総延長（m）","type":"text"},{"id":"重用延長（m）","type":"text"},{"id":"未供用延長（m）","type":"text"},{"id":"実延長（m）","type":"text"},{"id":"規格改良済延長（m）","type":"text"},{"id":"未改良延長（m）","type":"text"},{"id":"道路延長（m）","type":"text"},{"id":"橋梁延長（m）","type":"text"},{"id":"トンネル延長（m）","type":"text"},{"id":"未舗装延長（m）","type":"text"},{"id":"舗装道延長（m）","type":"text"}],
  "records": [
]}
