Originally Posted by
1201alarm
... I meant exactly that: additional systems which help to avoid deadly mistakes while keeping the crew in charge.
You will note that the two systems which have had the greatest effect on safety are
not such systems.
TCAS and EGPWS are
not warning systems, they are
directing systems and the current instruction is
not to keep the crew in charge. The crew is to do what it is told without second guessing.
This is a deliberate and clear policy to remove the human from the decision making process due to the error rate in humans. I am told that various modern systems have removed the human and the autopilot is integrated thus avoiding the spectacularly high error rate of humans attempting to follow the TCAS RA.