from_stop_id,to_stop_id,transfer_type,min_transfer_time
101_01,101_01,0,
123_01,123_01,0,
150_01,150_01,0,
150_01,150_02,0,
150_02,150_01,0,
150_02,150_02,0,
154_01,154_01,0,
178_01,178_01,0,
192_01,192_01,0,
197_01,197_01,0,
203_01,203_01,0,
195_01,195_01,0,
