{
  "fields": [{"id":"_id","type":"int"},{"id":"年度別（年度末現在）・区分","type":"text"},{"id":"総延長（ｍ）","type":"numeric"},{"id":"実延長（道路延長）（ｍ）","type":"numeric"},{"id":"実延長（橋りょう延長）（ｍ）","type":"numeric"},{"id":"実延長（トンネル延長）（ｍ）","type":"numeric"},{"id":"未供用その他（ｍ）","type":"numeric"}],
  "records": [
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    [2,"2017",1500208,1248307,3653,9517,238731],
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    [4,"2019",1500740,1252157,3955,9612,235016],
    [5,"2020",1501324,1252017,3955,9612,235740],
    [6,"国道",35215,33400,316,1499,0],
    [7,"県道",47126,44210,339,2577,0],
    [8,"市道",1418983,1174407,3300,5536,235740]
]}