ChristiaanJ,
Agreed on the importance of training & discipline & procedures (just like our grannies told us) but all I am suggesting is that there are technical *aides* (not necessarily solutions) that might potentially *help* in lowering the *probability* of runway/taxiway incursions. Neither do I want to cut out human agency nor should you completely negate the benefit of technology. GPWS and TCAS did lower accident probabilities and it's about more or less rather than all or nothing.
If we relied on the known only and failed to innovate, we would have perfect procedures but still no swept wings, breaks on undercarriage or Mach trimmers - in fact we wouldn't be flying at all. Flight deck would still consist of 4 people, there would be no auto-pilot etc. etc.
Balance between innovation (potential long-term benefit) and training/procedures (short term clearly) should be right!
Do give you a non-aviation example: In chess, machines now play far better than any live human. Would have been unthinkable 20 years ago.