Journal of Shanghai University(Natural Science Edition) ›› 2022, Vol. 28 ›› Issue (4): 569-581.doi: 10.12066/j.issn.1007-2861.2393

• Urban Traffic and the Environment •     Next Articles

A review of research on the dispersion of traffic-related air pollutants in street canyons with viaduct

HE Hongdi(), LU Danni, ZHAO Hongmei   

  1. Center for Intelligent Transportation Systems and Unmanned Aerial Systems Applications, State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2022-03-01 Online:2022-08-30 Published:2022-08-29
  • Contact: HE Hongdi E-mail:hongdihe@sjtu.edu.cn

Abstract:

With urbanization rapidly spreading worldwide, viaduct have appeared in many cities. Although such roads materially reduce traffic congestion, they also inevitably increase traffic pollution. Hence, we aim to investigate the dispersion of traffic-related air pollutants (TRAP) in street canyons with viaduct. We will first delineate the characteristics of traffic pollution and built environments in street canyons with viaduct. Next, we will analyze the spatial and temporal distribution of TRAP in street canyons with viaduct on spatial (horizontal and vertical) and temporal (macro and micro) scales. Finally, we will summarize the influence of factors including traffic, built environment, and micro-meteorological environment on TRAP dispersion in street canyons with viaduct. We expect that these investigations will enhance our knowledge of TRAP characteristics in street canyons with viaduct, which will be of significant relevance to mitigate TRAP in streets and urban areas.

Key words: viaduct, street canyon, traffic-related air pollutant, dispersion

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