Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Street Tree Designs for Particulate Matter Reduction in Glasgow: A Supportive Approach for Urban Planning

Version 1 : Received: 28 April 2024 / Approved: 29 April 2024 / Online: 29 April 2024 (10:17:42 CEST)

How to cite: Ratnayake, C.; Emmanuel, R. Street Tree Designs for Particulate Matter Reduction in Glasgow: A Supportive Approach for Urban Planning. Preprints 2024, 2024041898. https://doi.org/10.20944/preprints202404.1898.v1 Ratnayake, C.; Emmanuel, R. Street Tree Designs for Particulate Matter Reduction in Glasgow: A Supportive Approach for Urban Planning. Preprints 2024, 2024041898. https://doi.org/10.20944/preprints202404.1898.v1

Abstract

Urban air pollution is a significant threat to both the environment and public health. Primarily originating from traffic emissions, particulate matter is identified as the most prevalent and toxic pollutant in cities. In recent years, street vegetation has emerged as a nature-based solution to improve urban air quality. However, to achieve this goal, proper placement of vegetation is crucial. This study critically investigates how different street tree placement strategies affect the local air quality, based on a model calibrated using existing air quality measurements from one of the most polluted streets in Glasgow. We then test the local air quality effects of tree orientation, spacing, shape, porosity, size, species, and wind directions. The findings suggest that trees effectively enhance air quality, particularly when implemented on the leeward side of the street. To achieve optimal effectiveness, the spacing of trees require careful alignment with the aspect ratio, as haphazard planting could lead to unfavorable results. The insights on improving air quality in Glasgow's street canyons, complements the objectives of the ‘Glasgow Avenues Programme’ and can be included in its Low Emission Zones to co-benefit the environment and the wellbeing of the local community.

Keywords

urban air pollution; particulate matter; street trees; nature-based solutions; urban street canyon; ENVI-met

Subject

Engineering, Transportation Science and Technology

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.