How the position of trees planting can improve the near-road air quality exposed to CO&lt;SUB align="right"&gt;2 emission from transportation

Aini, Nurul; Shen, Zhenjiang

doi:10.1504/ijssoc.2020.112446

Cited by 1 publication

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“…Some elements can impact the dispersion of traffic emissions. Morakinyo and Lam (2016) and Aini and Shen (2020b) have shown that the position of the tree row influences the dispersion of that emission. The avenue-tree layout, such as the position and volume of the crown (Gromke and Blocken, 2015;Gromke and Ruck, 2007;Pretzsch, Biber, et al, 2015), column and row spacing (Nursery, 1999) also affects the distribution of vehicle emissions.…”

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confidence: 99%

Evaluation of the Shape of Tree Crowns to protect Air Quality on the Roadside from the CO<sub>2</sub> Dispersion produced by Transportation

Aini

Shen

Wikantiyoso

et al. 2023

IRSPSD International

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This research focuses on evaluating the shape of a tree's crown and its impact on CO2 dispersion from transportation. CO2 emissions from motor vehicles can quickly spread and cause poor air quality on the roadside. The design of tree planting is a way to control air quality by reducing CO2 dispersion. Therefore, the tree's crown shape is an essential element to consider when planting trees, as different crown shapes can have different effects on CO2 dispersion. Selecting the wrong shape for a tree's crown can have negative consequences for controlling CO2 dispersion on the roadside. To evaluate the impact of different tree crown shapes, this research examines five common shapes found in Surabaya city: round, umbrella, oval, conical, and columnar. The study area is created in 3D modelling using Sim Studio tools software. Computational fluid dynamics (CFD) analysis is then used to simulate the spread of CO2 emissions on the roadside. The simulation involves four scenarios that consider CO2 dispersion in 0°, 90°, 180°, and 270° wind direction. The last step of this research involves validating the data using correlation analysis. The results demonstrate that the shape of a tree's crown has a significant impact on CO2 dispersion. The oval, conical, and columnar shapes are the most suitable for planting along the roadside because they can effectively reduce the dispersion of CO2 emissions. In contrast, the round and umbrella shapes have the highest CO2 distribution and are unsuitable for planting along the roadside.

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