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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Chuang-Hung Lin1, Zheng-ZheXie1, Chien-Yuan Han2, and Shao-Wei Lu1
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DOI:10.17265/1934-7359/2026.05.004
1. Department of Architecture, National United University, 1 Lienda, Miaoli, 36003, Taiwan 2. Department of Electro-Optical Engineering, National United University, 1 Lienda, Miaoli, 36003, Taiwan
Dynamic shading behavior between buildings and other objects has been suggested as one way of changing microclimate and the change in microclimate that would in turn reduce the demand for heating and cooling. Understanding the dynamic shading behavior is an important aspect of the correct consideration of the sunshine in a built environment. Clearly, in order to reach the ideal landscape model for planting design, the light environment for plant growth also has to be taken into consideration. This study of dynamic sunshine distribution takes university buildings as a case to discover and discuss the light comfort zone for plant growth in the area adjacent to the buildings. In addition to simulating a shadow map that displays the duration of shadow at ground level a further number of shadow maps are constructed to represent the shadow patterns and durations at different heights above the ground. These are analyzed to gain an understanding of the vertical distribution of sunshine and its duration. Therefore we developed a novel concept, equivalent vertical sunshine hours curve (EVSH Curve), for different seasons and heights to review the required sunshine conditions for greening around a building. At the same time the behavior of the non-symmetrical light environment was observed on both sides of the portico due to the influence of nearby buildings. A more comprehensive deeper investigation of the light environment will indicate a more appropriate planting design for a greening place in a built environment.
Sunshine duration curve; planting design; vertical light environment.
Chuang-Hung Lin, Zheng-ZheXie, Chien-Yuan Han, and Shao-Wei Lu. (2026). Mapping the Equivalent Vertical Sunshine Duration Curve of Outdoor Space Beside Buildings for Dynamic Landscape Planting Design, Journal of Civil Engineering and Architecture, May 2026, Vol. 20, No. 5, 194-204.
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