Abstract
This research focuses on evaluating the row position of trees planting to the near-road air quality exposed to CO2 emitted from transportation. Since emission spread quickly to the roadside, it caused highly concentrated CO2 in ambient air that may harm human health, meanwhile the roadside is public space for pedestrians. The design of trees planting is necessarily critical in controlling air quality. This research provides four positions of trees planting simulated in Surabaya City, Indonesia, and created the physical condition according to the actual condition in a real 3D environment. CO2 emission was also calculated based on real data, simulated it using computational fluid dynamics (CFD) analysis. The result displayed that the position of trees planting impact on the air quality was caused by CO2 dispersion. Planting the trees as a barrier between roadside and road in double-row position is an effective way of decreasing CO2 dispersion.
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