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Course description: AEC Daily: Top-Down Design for Green Streets
ONGOING
Trees are essential for the health of the urban environment, mitigating the heat island effect, cleaning the air, reducing stormwater runoff, and improving residents’ health and well-being. But cities are often inhospitable to trees, where their growth may be stunted or their roots may damage surrounding infrastructure. This course explores ways to design successful projects incorporating green infrastructure by understanding the principles behind tree growth, proper type and amount of soil, water management, and the role of soil vault systems in helping urban trees thrive.
ONGOING
Learning Objectives:
Explain how trees help reduce the impact of the urban heat island effect, stormwater runoff, and air pollution while enhancing the health of the ecosystem and its inhabitants.
Describe the considerations for soil volume and specification that ensure proper growth and a healthy tree canopy and the benefits of soil vaults in supporting pavement and providing space for tree roots and service pipes.
Discuss the role and types of pavements, the benefits of porous pavements to urban trees, and the importance of pavement design and construction that accommodates expected loads while providing large volumes of uncompacted soil for root growth below.
Design a tree pit structure and pavement that recreates natural surroundings so the root system can access rainfall, predevelopment flows are restored, and stormwater is cleaned.