A failsafe, perhaps - or then a destination-selecting device?
Perhaps one twists the handle to select a destination, then informs his or her fellow passengers about the selection one just made because the machinery itself doesn't make the selection visible or audible.
Timo Saloniemi
Perhaps one twists the handle to select a destination, then informs his or her fellow passengers about the selection one just made because the machinery itself doesn't make the selection visible or audible.
Timo Saloniemi