SFO has ground radar systems (ASDE-X/ASSC) [1] which allows ground and tower controllers to see potential conflicts on taxiways and runways. Pure speculation, b

SFO has ground radar systems (ASDE-X/ASSC) [1] which allows ground and tower controllers to see potential conflicts on taxiways and runways. Pure speculation, but I don't think that these systems' conflict logic take into account an aircraft trying to land on a taxiway. [1] https://en.wikipedia.org/wiki/Airport_Surface_Surveillance_Capability https://en.wikipedia.org/wiki/Airport_Surface_Surveillance_C...