So, just to be glib, my car reports GPS positions at about 3 Hz at all times to an app (Teslamate) under my control, which is far more accurate than needed for

So, just to be glib, my car reports GPS positions at about 3 Hz at all times to an app (Teslamate) under my control, which is far more accurate than needed for runway incursion detection. And to boot, it literally drives me around, autonommously, every day, in an environment (my suburban neighborhood) vastly more complicated than any mere airport. To say that the problem will require some engineering is correct. To claim it's infeasible is just ridiculous.