PLATEAU"#3 4 なぜ3D都市データ・デジタルツインが必要なのか︖ →参加型まちづくりの新たなツール。データの標準化によりシミュレーション・将来予測に 4 Dembski, F.; Wössner, U.; Letzgus, M.; Ruddat, M.; Yamu, C. Urban Digital Twins for Smart Cities and Citizens: The Case Study of Herrenberg, Germany. Sustainability 2020, 12, 2307. Kilsedar, C.E.; Brovelli, M.A. Multidimensional Visualization and Processing of Big Open Urban Geospatial Data on the Web. ISPRS Int. J. Geo-Inf. 2020, 9, 434. Sustainability 2020, 12, 2307 7 of 17 Sustainabilityȱ2020,ȱ12,ȱxȱREVISIONȱ 7ȱofȱ17ȱ Figureȱ1.ȱMountingȱaȱtestȱsensorȱinȱtheȱstreetȱ(top)ȱtoȱcollectȱenvironmentalȱdataȱandȱtheȱdevelopedȱ mobileȱ applicationȱ “Reallaborȱ Tracker”ȱ usedȱ inȱ theȱ citizens’ȱ scienceȱ projectȱ toȱ collectȱ qualitativeȱ perceptualȱ dataȱ andȱ quantitativeȱ dataȱ onȱ people’sȱ movementȱ pathsȱ andȱ urbanȱ obstaclesȱ (below)ȱ (photosȱcreditedȱtoȱDembski,ȱ2019).ȱ ȱ Figure 1. Mounting a test sensor in the street (top) to collect environmental data and the developed mobile application “Reallabor Tracker” used in the citizens’ science project to collect qualitative perceptual data and quantitative data on people’s movement paths and urban obstacles (below) (photos credited to Dembski, 2019).