globalchange  > 气候变化事实与影响
DOI: 10.1016/j.atmosenv.2015.03.061
Scopus记录号: 2-s2.0-84927745713
论文题名:
The ratio of effective building height to street width governs dispersion of local vehicle emissions
作者: Schulte N; , Tan S; , Venkatram A
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 112
起始页码: 54
结束页码: 63
语种: 英语
英文关键词: Building aspect ratio ; Building effects ; Traffic related pollutants ; Transit oriented development ; Urban dispersion ; Vertical mixing
Scopus关键词: Airships ; Aspect ratio ; Buildings ; Pollution ; Building effects ; Traffic-related pollutants ; Transit oriented development ; Urban dispersion ; Vertical mixing ; Air pollution ; architectural design ; concentration (composition) ; dispersion ; emission control ; height ; street canyon ; traffic emission ; turbulent flow ; vertical mixing ; anemometer ; Article ; atmospheric dispersion ; building ; concentration (parameters) ; dispersion model ; exhaust gas ; field study ; meteorology ; model ; plume dispersion ; priority journal ; sonic anemometer ; United States ; California ; Germany ; Germany ; Hannover ; Los Angeles [California] ; Lower Saxony ; United States ; United States
Scopus学科分类: Environmental Science: Water Science and Technology ; Earth and Planetary Sciences: Earth-Surface Processes ; Environmental Science: Environmental Chemistry
英文摘要: Analysis of data collected in street canyons located in Hanover, Germany and Los Angeles, USA, suggests that street-level concentrations of vehicle-related pollutants can be estimated with a model that assumes that vertical turbulent transport of emissions dominates the governing processes. The dispersion model relates surface concentrations to traffic flow rate, the effective aspect ratio of the street, and roof level turbulence. The dispersion model indicates that magnification of concentrations relative to those in the absence of buildings is most sensitive to the aspect ratio of the street, which is the ratio of the effective height of the buildings on the street to the width of the street. This result can be useful in the design of transit oriented developments that increase building density to reduce emissions from transportation. © 2015 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81712
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作者单位: Mechanical Engineering, University of California, Riverside, CA, United States

Recommended Citation:
Schulte N,, Tan S,, Venkatram A. The ratio of effective building height to street width governs dispersion of local vehicle emissions[J]. Atmospheric Environment,2015-01-01,112
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