Southern duel: I'm not sure where you're getting your info from or which particular airport(s) you are describing?
At my airport LAS, nobody and I mean nobody, is permitted to drive " free range" - least of all ground handlers. We have very strict rules and if you refer to my previous, you will see that there is an entirely different set of tests/exams and also privileges between "ramp" drivers on the non-movement service roads and anyone that is authorized to be anywhere near a runway! Another point, no aircraft engineer, mechanic or airline manager is allowed beyond the ramp area without being escorted by airport ops personnel.
I have not heard aviation experts say that incursions are either solely or mainly aircraft. Yes, pilots make mistakes as well as drivers. Again, we don't know what this person was doing out there. All we know is that it was a LAWA employee.
As for alarms, yes, we have them as well and they go off according to your approach speed and angle approaching the hold bar. In addition, we also have RWSL as another layer and at two hotspots, an RGL as well. And so do a lot of airports. And like LAX, we have 4 runways of which 3 intersect....
