Trees as a Shading System for Streets on the East–West Axis: Computer Simulations for the Selected Geometrical Proportions of Building Developments in Humid Continental Climate

Katarzyna Zielonko-Jung and Justyna Janiak
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Katarzyna Zielonko-Jung: Department of Environmental Design, Faculty of Architecture, Gdańsk University of Technology, Gabriela Narutowicza 11/12 Street, 80-233 Gdańsk, Poland
Justyna Janiak: Faculty of Civil Engineering, Mechanics and Petrochemistry, Institute of Civil Engineering, Warsaw University of Technology, 17 Łukasiewicza Street, 09-400 Płock, Poland

Sustainability, 2019, vol. 11, issue 24, 1-11

Abstract: The study is aimed at investigating the possibilities for solar protection provided to the street canyon located on the E–W axis and with the following profiles: shallow (height/width (H/W) = 0.2, 0.6, and 1) and deep (H/W = 2) by two rows of trees located at a distance of 3 m away from southern and northern façades. The research was based on numerical simulation analyses conducted in the Rhinoceros ® program, with the application of the Ladybug Tools environmental plugin for a street set in the city of Płock (52° 32′50″N 19°42′00″E) for the day characterized with the highest total intensity of insolation within the year, 7 June, between 8:00 a.m. and 5:00 p.m. The research yielded no differences in terms of shading the surface of the southern façade of streets with low, medium, and high building developments. However, slight differences (40 m²) were noted for the model with highrise building developments (h = 60 m) characterized with a deep section (H/W = 2). The simulation also revealed that the H/W ratio parameter only slightly (0.88%–1.93%) affected the share trees have in shading the street floor, except in the case of very shallow profiles (H/W = 0.2).

Keywords: trees; shading; street canyon; insolation; sustainable design (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2019
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