Abstract
We serveyed the number of elevators in high raised apartments in Japan, Europe and U.S.A. We investigated : the relationship between the number of elevators and the number of apartments on each floor, the relationship between the number of elevators and the mumber of floors. The results obtained are as follows : (1) As the amount of elevator service increases, so does the number of elevators. (2) Although there are the same number of apartments in two different buildings, the taller building will require more elevator service. (3) The mumber of apartments using one elevator tends to increase in taller buildings. (4) In Europe and U.S.A., the average number of apartments of slab designed type building using one elevator is higher than that of the tower designed type.