4 ms·
Well, my point isn't about safety, it's about usability. Escalators can still be used as stairs when they fail. Elevators can't be used at all.
by CaptSpify 10y ago
Well, my point isn't about safety, it's about usability. Escalators can still be used as stairs when they fail. Elevators can't be used at all.
- scoates 10y agoI see. Good point.