[tacoooooooo]

> Yes I understand airports are complex. So you have a computer and a human, and they work together.

how do you think it works today? some guy with binoculars?

[Maxious]

One of the issues being explored is that although US radar is aged, surface vehicles can be equipped with ASDE-X transponders to be more visible to ATC systems. https://www.faa.gov/air_traffic/technology/asde-x

The vehicle that crashed into the plane did not have one and thus no automated alert was triggered.