Consider that if you have access to all the local ADS-B data you can project paths forward through 3D space for the next, say, 30 seconds or so. Using GPS you can determine your own position in 3D space. At that point it's trivial (and I'm not handwaving here, it is literally extremely trivial) to filter projected paths based on passing close enough to your own in 3D space (ie accounting for altitude). Stick that on a tablet and require it to be present in all vehicles that operate on the tarmac.
It wouldn't need to work 100% of the time because you'd still be required to contact ATC. The only requirement is that it have a reasonably high chance of alerting drivers to potential mistakes before they happen.
Which is to say this incident was trivially preventable had anyone with authority over these sorts of things cared to bother.
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Consider that if you have access to all the local ADS-B data you can project paths forward through 3D space for the next, say, 30 seconds or so. Using GPS you can determine your own position in 3D space. At that point it's trivial (and I'm not handwaving here, it is literally extremely trivial) to filter projected paths based on passing close enough to your own in 3D space (ie accounting for altitude). Stick that on a tablet and require it to be present in all vehicles that operate on the tarmac.
It wouldn't need to work 100% of the time because you'd still be required to contact ATC. The only requirement is that it have a reasonably high chance of alerting drivers to potential mistakes before they happen.
Which is to say this incident was trivially preventable had anyone with authority over these sorts of things cared to bother.