{
  "fields": [{"id":"_id","type":"int"},{"id":"road_code","type":"text"},{"id":"km","type":"text"},{"id":"name","type":"text"},{"id":"length","type":"numeric"},{"id":"width","type":"numeric"},{"id":"height","type":"numeric"},{"id":"footpath_length","type":"numeric"},{"id":"pass_type","type":"text"},{"id":"surface_name_en","type":"text"},{"id":"construction_year","type":"numeric"},{"id":"construction_completed_year","type":"numeric"},{"id":"subdistrict","type":"text"},{"id":"district","type":"text"},{"id":"owner_name","type":"text"},{"id":"latitude_start","type":"numeric"},{"id":"longitude_start","type":"numeric"},{"id":"latitude_end","type":"numeric"},{"id":"longitude_end","type":"numeric"}],
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    [1,"ปข.031",null,"อุโมงค์ลอดทางรถไฟ",30,10,2.5,null,"อุโมงค์ทางลอด(Underpass)","CONCRETE",2559,2562,"สามร้อยยอด","สามร้อยยอด","บทช.ปราณบุรี",12.32566,99.91228,12.32608,99.91128],
    [2,"นม.1001","14+375","อุโมงค์จุดตัดทางรถไฟสายนม.1001แยกทล.2-โรงพยาบาลบัวใหญ่",827.488,9.6,5.5,0.6,"อุโมงค์ทางลอด","CONCRETE",2560,2561,"บัวลาย","บัวลาย","บทช.นครราชสีมา",15.635,102.472702,15.637994,102.465567],
    [3,"นม.3024","0+500- 0+640","อุโมงค์ลอดทางรถไฟ",140,11,5.5,null,"อุโมงค์ทางลอด","CONCRETE",2559,2561,"พระพุทธ","เฉลิมพระเกียรติ","บทช.นครราชสีมา",14.997429,102.23007,14.996189,102.230264],
    [4,"ขก.1027","0+575","อุโมงค์ลอดทางรถไฟ ขก.1027 แยกทล.2-บ้านโคกท่า อ.เมือง จ.ขอนแก่น",810,11,5,null,"อุโมงค์ทางลอด (Underpss)","ASPHALT CONCRETE",2558,2560,"ศิลา","เมือง","บทช.ขอนแก่น",16.484848,102.544383,16.480891,102.352097],
    [5,"ขม.3029","1+025","ศูนย์ราชการร่วมใจ",665,7.9,5.5,1.2,"ทางลอด (Underpass)","ASPHALT CONCRETE",2546,2549,"ช้างเผือก","เมือง","บทช.สมโภชเชียงใหม่ 700 ปี",18.841931,98.972476,18.840235,98.975958],
    [6,"ขม.3029","6+550","รวมโชคมีชัย",364.6,7,5.5,1.2,"ทางลอด (Underpass)","ASPHALT CONCRETE",2546,2549,"ฟ้าฮ่าม","เมือง","บทช.สมโภชเชียงใหม่700ปี",18.823599,99.009307,18.82294,99.014338],
    [7,"ขม.3029","8+800","แม่คาวสะอาดใส",375,7,5.5,1.2,"ทางลอด (Underpass)","ASPHALT CONCRETE",2546,2549,"สันทรายน้อย","เมือง","บทช.สมโภชเชียงใหม่700ปี",18.811234,99.024986,18.807747,99.027804],
    [8,"ขม.3029","12+400","บวกครกศิวิไล",350,7,5.5,1.2,"ทางลอด (Underpass)","ASPHALT CONCRETE",2546,2549,"หนองป่าครั่ง","เมือง","บทช.สมโภชเชียงใหม่700ปี",18.782442,99.042017,18.778252,99.042349],
    [9,"ขม.3029","14+425","ศรีบัวเงินพัฒนา ",420.3,7,5.5,1.2,"ทางลอด (Underpass)","ASPHALT CONCRETE",2546,2549,"ท่าศาลา","เมือง","บทช.สมโภชเชียงใหม่700ปี",18.765567,99.039536,18.760929,99.03817],
    [10,"ขม.3029","18+150","เวียงกุมกามโบราณสถาน",355.4,10.5,5.5,1.2,"ทางลอด (Underpass)","ASPHALT CONCRETE",2537,2544,"หนองผึ้ง","เมือง","บทช.สมโภชเชียงใหม่700ปี",18.744285,99.01494,18.7441133,99.012041],
    [11,"ขม.3029","24+100","แม่เหียะสมานสามัคคี",350,7,5.5,1.2,"ทางลอด (Underpass)","ASPHALT CONCRETE",2537,2544,"แม่เหียะ","เมือง","บทช.สมโภชเชียงใหม่700ปี",18.742024,98.961344,18.744468,98.957625],
    [12,"ชม.3035","9+000","อุโมงค์ทางลอดแม่วาง",644,7,5.5,1,"ทางลอด (Underpass)","ASPHALT CONCRETE",2551,2557,"บ้านกาด","แม่วาง","บทช.สมโภชเชียงใหม่700ปี",18.60089,98.834288,18.610927,98.835735],
    [13,"ชม.3035","27+540","อุโมงค์ทางลอดต้นเกว๋น",462,7,5,1,"ทางลอด (Underpass)","ASPHALT CONCRETE",2557,2565,"หนองควาย","หางดง","บทช.สมโภชเชียงใหม่700ปี",18.722141,98.92748,18.727216,98.926434],
    [14,"ชร.1023","15+200","อุโมงค์ทางลอดทางหลวงหมายเลข1418",500,14,5.5,null,"อุโมงค์ทางลอด","ASPHALT CONCRETE",2556,2559,"บ้านตู่","เมือง","บทช.เวียงบูรพา",19.953395,99.867003,19.957503,99.878399],
    [15,"นบ.3021","16+700","อุโมงค์ทางลอด",480,8.3,5,1.7,"อุโมงค์ทางลอด (Undarpass)","ASPHALT CONCRETE",2554,2554,"บางขุนกอง","บางกรวย","ราชพฤกษ์",13.821176,100.448873,13.827593,100.448095]
]}