from_stop_id,to_stop_id,from_route_id,to_route_id,from_trip_id,to_trip_id,transfer_type,min_transfer_time
ptm_138,ptm_138,,,,,2,0
ptm_181,ptm_181,,,,,2,0
ptm_309,ptm_309,,,,,2,0
ptm_305,ptm_305,,,,,2,0
ptm_45936,ptm_46091,,,,,2,0
