from_stop_id,to_stop_id,transfer_type,min_transfer_time
9_01,10_01,0,
9_01,10_02,0,
10_01,10_01,0,
10_01,10_02,0,
10_02,10_01,0,
10_02,10_02,0,
11_01,11_01,0,
17_01,17_02,0,
