from_stop_id,to_stop_id,transfer_type,min_transfer_time
1_01,1_01,0,
14_04,14_04,0,
18_01,18_01,0,
18_01,18_02,0,
18_02,18_01,0,
33_01,33_01,0,
35_01,35_01,0,
68_01,68_01,0,
86_01,86_02,0,
86_01,86_03,0,
86_02,86_01,0,
86_03,86_01,0,
92_01,92_01,0,
110_01,148_01,0,
137_01,137_01,0,
148_01,110_01,0,
