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Beyond detecting runway incursions, couldn't ASDE be integrated with some kind of RTS-like interface for ATC so they could indicate where planes should go next? Automated alerts could be broadcast to ATC and to the pilots if planes deviated from the plan, and the system could flag actions that risked costly but non-fatal ground collisions and other problems unrelated to takeoffs or landings.

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Some major airports already have Follow the Greens.

Traditionally every taxiway and every possible path on each intersection will be painted with a yellow line and illuminated with yellow lights.

Follow the Greens replaces that with green lights which are controllable at a very high resolution. The result is that every plane will have a path of green lights to follow, greatly reducing everyone's workload.

Further, Electronic clearance delivery already sends instructions to the airplane electronically for their in-flight clearance. An electronic delivery of their ground clearance could be hooked up to navigation to highlight that route on the ground as well.

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