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Protection of pedestrian zones and residential areas from vehicle emissions by trees and shrubbery planting technique

机译:通过树木和灌木植物技术保护行人区域和住宅区的居住区

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The article describes the results of in-situ observations and physical model experiments for dispersion of automobile exhaust pollutants by planted areas in urban streets and roads.Structure and composition of protective planting is defined for better dispersion of car emissions.In the"'road-shelterbelt-building"system,if the belt height is about half the height of the building,the most effective dilution of pollutants along the building facades and at the pedestrian ways is observed.As the belt height approaches the height of the buildings,the air in yards of the buildings is still cleaner because of the longer way the pollutants have to travel,but then they accumulate within the street space.The shelterbelts for the densely built-up stretches of heavy-traffic streets should be of permeable structure to prevent pockets of stationary air;this ensures the necessary air interchange at the pedestrian ways and also more even pollutant dispersion at the building facades.Guidelines are provided for linear and strip protective/decorative plantation structuring for bringing the environmental discomfort factors in residential areas down to the environmental standards.
机译:本文介绍了原位观测和物理模型实验,用于城市街道和道路上种植地区的汽车粪便污染物分散。保护种植的结构和组成被定义为更好地分散汽车排放。在“'路上 - 避难所建筑“系统,如果皮带高度约为建筑物的高度大约一半,则观察到沿建筑物外观和行人方式的污染物最有效稀释。皮带高度接近建筑物的高度,空气在建筑物的院子里仍然清洁,因为污染物必须走得更远,但随后它们在街道空间内积累。沉重交通街道密集伸展的避难所应该是可渗透的结构,以防止口袋固定空气;这确保了行人方式的必要空气交换,并且在建筑物外观上的均匀污染物分散也是如此.guidelines是透明的用于线性和剥离保护/装饰种植园的结构,用于将住宅区的环境不适因素降至环境标准。

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