Aircraft systems are developed independently and added as options to planes. Which means they get swapped out, there are variants in capabilities, and multiple manufacturers involved.
> This can lead to cognitive overload when multiple systems issue verbal warnings simultaneously.
This is a known phenomenon on flights as well. There is some speculation it played a part in Air France 447. The plane technically _was_ telling the pilots the _precise_ problem they faced, but in the sea of other warnings they were entirely lost.
> tone alarms might be easier to manage and differentiate than multiple overlapping verbal warnings.
If you're a nurse, is the fact you have a ventilation alarm in one room and a temperature alarm in a different room that can be discerned without visual confirmation a useful feature in a health care setting?
I think the big difference is your flight has 2 people responsible for hundreds of lives. In the hospital you would hope the ratio would be more favorable.
