"from_stop_id","to_stop_id","transfer_type","min_transfer_time"
"1604-831983","1604-832027","1",""
"1604-831990","1604-832087","2","5"
"1604-832027","1604-831983","1",""
"1604-832087","1604-831990","2","5"
"1604-832087","1604-832088","2","8"
"1604-832088","1604-832087","2","8"
