Title: Design of tree planting pattern: impacting on the road-air quality for pedestrians from CO₂ dispersion emitted from transportation

Authors: Nurul Aini; Zhenjiang Shen

Addresses: School of Environmental Design, Kanazawa University, Kanazawa, Japan; Department of Architecture, University of Merdeka Malang, Malang, Indonesia ' Xi'an University of Architecture and Technology (XAUAT), No. 13, Yanta Road, Xi'an, Shaanxi Province, 710055, China; School of Environmental Design, Kanazawa University, Kanazawa, Japan

Abstract: This research focuses on the design of trees planting patterns based on CO₂ dispersion emitted from transportation in a real 3D environment. This study provides five scenarios based on some element design of trees planting pattern, which is the position of trees planting, avenue-tree layouts, and the spacing of the trees. This research simulates fluid flow, so computational fluid dynamics (CFDs) was used to simulate the spread of CO₂. The study area and emission data are according to the actual condition of the road in Surabaya City, Indonesia. The result displayed the CO₂ dispersion at an altitude of 1.8 metres as an average of human height and proved that the design influences CO₂ dispersion. Pattern B has a design that can disperse CO₂ emission better than other patterns. Meanwhile, pattern A is not good enough in dispersing CO₂ from transportation, so this design has large areas in poor road-air quality.

Keywords: computational fluid dynamics; CFD; CO₂ dispersion; design guideline; road air quality; trees planting pattern.

DOI: 10.1504/IJSSOC.2020.109775

International Journal of Sustainable Society, 2020 Vol.12 No.3, pp.185 - 201

Received: 25 Apr 2020
Accepted: 29 Apr 2020
Published online: 23 Sep 2020 *

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