Future facility locating method in consideration of maintaining accessibility and reducing reconstruction costs

We propose a method to determine future facility locations in consideration of maintaining present accessibility and reducing reconstruction costs by extending the previous method. In the previous method, the effectiveness was confirmed by applying the method to a fire station in the city of Iwaki, Japan. In this paper, firstly, 1) we extend the scope of application and confirm the effectiveness by applying the method to a junior high school in the city of Takayama, Japan. The population distribution in Takayama is different from that in Iwaki, and the junior high school is a facility where there is demand from a specific population. In the previous method, it was possible to determine the facility location while maintaining present accessibility. However, the possibility that all facilities have to be reallocated and/or rebuilt is high. One is easily reminded that reallocation and rebuilding are costly. Therefore, 2) we propose a method of determining future facility location in consideration of maintaining present accessibility and reducing reconstruction costs by considering substitution in existing facilities. Our proposed method 2) is similarly applied to the junior high school in Takayama. We evaluate the total floor area for rebuilding and increase/decrease construction in case of 1) reallocation of all facilities and 2) considering substitution in existing facilities. Our proposed method 2) was also applied for the fire station in Iwaki. As a result, it was determined that the total floor space can be reduced while maintaining the present accessibility.