著者

内田 孝紀 荒屋 亮 Uchida Takanori Araya Ryo

出版者

[九州大学応用力学研究所]

雑誌

九州大学応用力学研究所所報 (ISSN:13455664)

巻号頁・発行日

no.142, pp.55-62, 2012-03

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In order to simulate unsteady three-dimensional airflow around urban city area with characteristic length scales of the order of kilometers, we have been examining the large-eddy simulation (LES) technique using a finite-difference method (FDM). In this paper, using the LES technique, we have performed the calculation of buoyant gas diffusion around real urban area with huge computational grids. The various patterns of gas diffusion are clarified, and airflow is also locally accelerated or decelerated, due to the topographic and the obstacle effects.

著者

荒屋 亮 竹下 輝和 池添 昌幸

出版者

日本建築学会

雑誌

日本建築学会計画系論文集 (ISSN:13404210)

巻号頁・発行日

vol.70, no.589, pp.153-160, 2005

参考文献数

15

被引用文献数

10 12

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The purpose of this research is to analyze the configuration of open space in Japanese urban area by applying the space syntax theory, and to investigate the relationship between the structure of urban form and social conditions. 1) Configurations of open space can be quantitatively characterized by the space syntax theory. 2) Integration value correlates closely with pedestrians distribution. 3) Distribution of the building-use does not correlate to the integration value but it is a correlate of the pedestrian distribution. 4) The space syntax theory can estimate pedestrian flows and the building-use of future plans. It is concluded that analysis based on the space syntax theory is useful to support urban planning, because the theory can be applied to recognize the present situation and to evaluate the alternatives comparatively.

著者

木室 義彦 荒屋 亮 有田 大作 家永 貴史 村上 剛司 楊 智梅

出版者

The Robotics Society of Japan

雑誌

日本ロボット学会誌 (ISSN:02891824)

巻号頁・発行日

vol.27, no.8, pp.868-876, 2009-10-15

被引用文献数

2 2

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This paper proposes the concept of R-GIS, which is a geographic information system (GIS) for providing robots with environmental information. A GIS is capturing, storing, managing and presenting geographic information, and is used for various applications such as urban planning, agriculture, emergency response. In order to use a GIS for with robots, R-GIS is designed from two viewpoints. The first one is how to manage and present environmental information for robot planning. The second one is how to capture and store environmental information sensed by robots and sensors in the environment. In addition, we briefly show the system configuration of R-GIS, trends around GIS in Japan and an experimental field for R-GIS.