Out of the tens of thousands of installed systems, there are bound to be failures of the mechanical safeties (or human-performed installation/maintenence) that can lead to a Swiss cheese path to failure. I wouldn’t necessarily dismiss the whole category as a bad example because of that however.
Is it perfectly fail-safe? Well, in those cases, it wasn’t. But what were the contributing factors?
caradenada@feddit.cl 3 weeks ago
Escalators have many security features and they are one of the safest modes of transportation.