monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date,service_id
0,1,0,0,1,0,0,20260401,20270331,火金
1,0,1,0,1,0,0,20260401,20270331,月水金
1,1,1,1,1,0,0,20260401,20270331,夏季（４月～１０月）
1,1,1,1,1,0,0,20260401,20270331,戸隠西部線冬季
1,1,1,1,1,1,0,20260401,20270331,月～土曜
1,1,1,1,1,1,1,20260401,20270331,毎日(通年運行)
