Abstract
This is the third paper of a continual study titled above. In the second paper, I proposed Indoor Population Aggregating Method which is based on floor space data of each building type as an estimation method of de facto population in small districts. In this paper, another method which is based on employee's data of establishment census is newly proposed. An outline of this method is as follows. First of all, maximum indoor population of each building use type must be estimated. Indoor population is divided into two categories, user's population and worker's population. Worker's maximum indoor population of each building type is given by employee's data according to industrial classification, while user's maximum indoor population of each building type is calculated by multiplying its worker's maximum indoor population by user/worker ratio which is number of users per worker of the building type. The following process of this method is the same as Indoor Population Aggregating Method based on floor space data. Finally, de facto population of all districts in the central area of Osaka are estimated by this method.
