There's no 'set width' - however - they should be wide enough to get three trolleys side-by-side without touching.
A passageway between rows of seats, as in an auditorium or an airplane.
yes
I have particullarly wide feet myself and I have found that J. Renee is the best and most comfortable brand of dress shoes for the wide footed lady.
I just had an initial consultation at a TMJ specialist clinic at the University of Minnesota. During my evaluation, the specialist told me that 40-50 mm is how wide the average person (and "normal"...