data coverage in Japanese Cities 1.The Level of Detail 1 (LOD1) building data in Project PLATEAU, mostly created using survey data from 2019 to 2021, covers 150 cities or about 11% of Japan's total cities, representing about 40% of Japan's population. 2.The city with the most extensive LOD1 data coverage is central Tokyo, with large cities of over 500,000 inhabitants covering about half the area, primarily in urban planning areas. This coverage represents about 55% of the total area. 3.A comparison with OpenStreetMap (OSM) data shows that the cities covered by Project PLATEAU have more detailed building data. The number of buildings represented in the OSM within the PLATEAU-covered cities is approximately 31% of the total number of buildings maintained in LOD1. Category Unit > 500,000 pop. Cities > 200,000 pop. Cities Tokyo's 23 Wards General Cities Total Selected Cities cities 17 26 23 84 150 Total Population 2020 pop. 24,574,264 9,116,039 9,733,276 6,358,667 49,782,246 City Areas sq. km 10,392 9,226 623 15,463 35,704 OSM Buildings objects 2,896,476 916,057 731,374 1,122,159 5,666,066 sq. km 4,830 4,886 623 9,254 19,593 objects 7,776,703 4,691,285 1,768,252 4,073,643 18,309,883 sq. km 71 80 23 133 307 objects 181,978 161,884 31,082 222,712 597,656 Buildings LOD2 Buildings LOD1