FORECASTING SYSTEM AND FORECASTING PROGRAM

To provide a forecasting system and a forecasting program that can forecast a number of peoples who stay in a building within a plurality of object domains.SOLUTION: In a building having multiple floors, a server device 2 forecasting a number of peoples who stay in a building on the multiple floors on the prediction object day comprises an acquisition part 231 that acquire information on a number of people who stay in the building that indicates the number of people who stayed in the building in the past and a prediction part 232 that predicts a number of peoples who stay in the building on the multiple floors on the prediction object day based on the number of people who stayed in the building that the acquisition part 231 acquired, the acquisition part 231 acquires first past number information of people who stayed in the building indicating the number of people who stayed in the building in the past day and second past number information of people who stayed in the building indicating the number of people who stayed in the building in a day preceding the day the first past number information of people who stayed in the building corresponding to the prediction object day indicates.SELECTED DRAWING: Figure 1 【課題】複数の対象領域内の在館者の人数を予測することができる予測システム及び予測プログラムを提供すること。【解決手段】複数のフロアを有する建物において、予測対象日における複数のフロアの在館者の人数を予測するサーバ装置２であり、建物の過去の在館者の人数を示す在館者数情報を取得する取得部２３１と、取得部２３１が取得した館者数情報に基づいて、予測対象日における複数のフロアの在館者の人数を予測する予測部２３２と、を備え、取得部２３１は、予測対象日の属性に対応する過去の日における在館者の人数を示す第１過去在館者数情報と、予測対象日に対応する第１過去在館者数情報よりも過去の日における在館者の人数を示す第２過去在館者数情報を取得する。【選択図】図１