Designing Safety-critical #interface s entails proving the #safety and operational #usability of each component.
See this experimentation-based
#typographical #design #study for safety-critical contexts.
https://enac.hal.science/hal-01022511/file/Legible_are_you_sure-.pdf
It lead #Airbus to engage a group of designers to create a special #truetype #font, called B612. You can use #B612 for free:
https://b612-font.com/