行人
瓶颈
环境科学
流离失所(心理学)
外观
气象学
交叉口(航空)
计算机科学
运输工程
地理
土木工程
工程类
心理治疗师
嵌入式系统
心理学
作者
Dimitri Voordeckers,T. Lauriks,Donja Baetens,Tom Ysebaert,Siegfried Denys,Pieter Billen,Tom Tytgat,Maarten Van Acker
标识
DOI:10.1016/j.landurbplan.2023.104974
摘要
Mitigating the adverse effects of air pollution, especially on human health, is one of the greater contemporary challenges for cities. Street canyons have herein been identified as bottleneck areas in urbanized environments. Focusing on the necessity of fast-response interventions, strategies to control source-receptor pathways (e.g. implementing low boundary walls (LBWs)) are gaining interest. A potential strategy which is greatly overlooked is the adjustment (reduction or displacement) of traffic lanes in order to increase the distance between source (traffic) and recipient (pedestrians). Within our study, computation fluid dynamics (CFD) is used to simulate the impact of alternations to traffic lanes (whether or not combined with LBWs) on the pedestrian exposure to NO2 for a specific case-study (Belgiëlei, Antwerp) under two prevailing wind directions. The average differences in NO2 concentrations for the entire pedestrian area ranged between +1.0 % to −3.6 %. On specific locations, reduction up to −8.0 % were reached. In case of perpendicular winds, a lateral displacement of all traffic lanes towards the windward facade including LBWs was found most beneficial to reduce pedestrian exposure. LBWs also showed to be efficient in reducing potential adverse effects of lane displacement under less frequent wind directions.
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