In Germany, for the purpose of mitigation of heat stress in summer and air pollutant load in winter, urban planning with consideration on the urban climate protection represented by “Luftleitbahnen”(Urban ventilation lanes) is practiced effectively. We Japanese have to analyze basic wind data statistically for the discussion on the necessity of urban ventilation lanes in Japanese cities, e. g. frequency of calm days in each season, histogram of wind velocity. In this paper, the author reviewed on studies and practices on urban ventilation lanes and discussed on the probability to apply “Luftleitbahnen” to Japanese and Asian cities.

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