from_stop_id,to_stop_id,transfer_type,min_transfer_time
831983,831983,1,
831983,832027,1,
831990,832087,2,5
831994,831994,0,
832027,831983,1,
832034,832034,0,
832087,831990,2,5
832087,832088,2,8
832088,832087,2,8
