街路樹がストリートキャニオン内の気流分布,空気汚染,歩行者空間の温熱快適性に及ぼす影響の検討 : 仙台市中心市街地の夏季の温熱・空気環境実測(その1)

概要

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This study aims to clarify the effects of roadside trees on turbulent airflow, air pollutant diffusion and pedestrian thermal comfort within street canyons in the central part of Sendai city, Japan. The detailed measurements were carried out within Jozenji-street in the summer of 2004. Measurements within Hirose-street were also conducted for comparison. Characteristics of flow pattern and distributions of turbulence quantities were investigated, and time-variations of spatial distributions of NO_X concentration and thermal environment, i.e. air temperature, globe temperature, air humidity and SET were shown. In Jozenji-street, many trees were planted on sidewalk and central walkway, and the density of trees was much higher than that in Hirose-street. The effects caused by roadside trees showed complex results which clearly improved thermal environment but also increased NO_X concentration simultaneously.
社団法人日本建築学会の論文
2007-03-30