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