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Norihiro Watanabe1, Tsuyoshi Setoguchi1, Shota Yokoyama1, Zhiming Guo1 and Takuya Tsutsumi2


1. Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan
2. Northern Regional Building Research Institute, Hokkaido Research Organization, Asahikawa 078-8801, Japan


Regional climatic conditions should be considered while designing urban development plans, with special attention to the impact of snowfall on public spaces in cities with harsh winters. The Kitami-city-hall-renewal project in Hokkaido, Japan was studied as an environmental assessment of snow drifting. Assessments of the two site plans proposed during the architectural planning process (A-type and B-type) were conducted in terms of the following three items: (1) The two site plans indicate snow-drifting problems around the main entrance; (2) More number of local snowdrifts on the main-street sidewalks were suggested in the B-type design; (3) Less number of snowdrifts in the parking area beside the railroad were indicated in the A-type design. These results were reflected in the architectural planning process. On the basis of this study, a desirable design process incorporating environmental assessments has been identified for cities with harsh winters.


Winter cities, snow simulations, wind tunnel, urban design, environmental assessments.

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