Planning and Design of Urban Green Environment Assisted by Integrated Spatial Information System

利用由地理信息系统和CAD/CG组成的集成空间信息系统，对宜户河下游卫星城的城市绿地环境进行了调查。他通过制作绿色环境数据库，找出其年际变化，并将现有绿色与绿色总体规划进行比较。他一直在开发一种在3-D空间中呈现绿色总体规划的新方法。具体来说，他根据大阪府丰中、平方和高崎三个城市的各自特点开发了绿色环境规划支持系统。然而，遥感分析的绿色环境数据库覆盖了这三个城市的全市范围。采用空间自相关分析中的连接统计分析方法，对丰中市的绿色环境形态进行了定量确定。这为我们评价绿色环境质量提供了新的指标。在平方的案例中，他通过使用机载LIDAR(光探测和测距)数据生成的DSM(数字表面模型)，通过能见度分析得出绿色可见面积比率。这为定量、高效地评价绿色的视觉效果提供了一种新的方法。他开发了另一种分析绿色视觉效果的新方法，将三维绿色空间与体素空间结合在一起。他还分析了高津市以水和绿色为重点的河流景观。根据能见度分析结果计算可视土地覆盖分类比例。然后，他提出了一种新的方法，利用机载LIDAR数据和各种空间数据，如DM(数字地图)数据、航空正射影像和卫星图像，建立三维城市模型。在这个过程中，他完成了立体呈现绿色环境的方法。

The head investigator has been investigating the urban green environment in the satellite cities in the lower reaches of the Yodo River by using the integrated spatial information system made up of GIS and CAD/CG. He found its yearly changes with making the database of green environment, and compared the existing green with the green master plan. And he has been developing a new method to present the green master plan in 3-D space.Concretely, he developed the planning support system for the green environment according to each charactetistic of three cities, Toyonaka, Hirakata and Takatsuki, in Osaka Prefecture. However, the database of green environment analyzed by remote sensing was covering the citywide area of all three cities. The JOIN statistical analysis, one of spatial auto-correlation analyses, was done to fix the form of the green environment quantitatively in Toyonaka City. It gave us new indices to evaluate the quality of the green environment. In the case of Hirakata City, he found the green visible area ratio with visibility analysis by using the DSM (digital surface model) generated from the airborne LIDAR (light detection and ranging) data. It gave us a new method to evaluate visual effects of green quantitatively and efficiently. He developed another new method to analyze the visual effects of green by making the 3-D green visible space with voxel space.He also analyzed the riverscape focusing on water and green in Takatsuki City. The ratio of land cover classification in sight was calculated according to the result of visibility analysis. Then, he proposed a new method to construct 3-D urban models by utilizing the airborne LIDAR data with various spatial data such as DM (digital map) data, aerial ortho-photos, and satellite images. In this process he completed the method to present the green environment three-dimensionally.