from_stop_id,to_stop_id,transfer_type,min_transfer_time
101_01,302_01,0,
302_01,101_01,0,
302_01,302_01,0,
113_01,113_01,0,
113_01,113_02,0,
113_02,113_01,0,
113_01,429_01,2,300
113_02,429_01,2,300
429_01,113_01,2,300
429_01,113_02,2,300
