from_network_id,to_network_id,from_stop_id,to_stop_id
MT,MT,STN_MT_JUAREZ,STN_MT_JUAREZ
MT,MT,mxa_T14B_STP_55,mxa_T14B_STP_55
MT,MT,STN_MT_CENTRO,STN_MT_CENTRO
MC,MC,,
MP-T,MP-T,,
