GIS Study of Sububan Agglomerations.

1.利用航空照片和地图资料，分析了亚特兰大都市圈近郊中心城区的发展和老CBD的变迁与衰落。因此，明确了以下流程。CBD被划分为几个不同功能的聚集区。郊区的市中心由郊区的购物中心和小型办公区聚集而成。针对空间单元较小的统计数据，对GIS数据进行了校核。利用小单元GIS对日本和美国都市圈进行了比较研究。亚特兰大的就业数据显示出城郊集聚的过程，但日本的数据不足以分析。其单位（人口普查底图数据）未纳入机构统计，分类也不充分。基于GIS的日本主要都市圈人口普查通勤数据数据库已经完成。作为分析的结果，他们表明，郊区通勤急剧增加，并在1965- 1995年的通勤流量中具有特点。利用专利数据，利用GIS对企业间网络的技术创新进行了分析。它们表明，郊区的紧密网络现在非常重要，特别是对小型和年轻的公司。

1.The growth of suburban downtowns and the change and decline of old CBD in Atlanta Metropolitan Area are analyzed with the sourece of landuse by aerophotos and maps. As the result, the following process are made clear. CBD has devided to a few agglomerations with defferent functions. suburban downtowns are agglomerated from suburban shopping center and small office districts.2. In the view of statistical data with small spatial unit, GIS data are checked. Comparative study are made between Metropolitan Areas in Japan and US by GIS with small unit. Emplyment data in Atlanta showed suburban agglomeration process but Japanese data are not enough to analyse. Their unit (base map data of Census) is not integrated to the Establishments Statistics and the classifications is neither enough.3. The database on GIS has completed about the Census Commuting data of major Metropolitan Area in Japan. As the result of analysis, they showed sububan commuting is drastically increasig and chracteristic in commting flows 1965-95.4. Technological innovations by inter-firm networks are analysed by GIS through the data of patents. They show suburban close network is now very important especially to the small and young firms.