Abstract
Climate change and urbanization are converging to challenge city drainage infrastructure due to their adverse impacts on precipitation extremes and the environment of urban areas. Sustainable drainage systems have gained growing public interest in recent years, as a result of its positive effects on water quality and quantity issues and additional recreational amenities perceived in the urban landscape. This paper reviews recent progress in sustainable drainage development based on literature across different disciplinary fields. After presenting the key elements and criteria of sustainable drainage design, various devices and examples of sustainable drainage systems are introduced. The state-of-the-art model approaches and decision-aid tools for assessing the sustainable alternatives are discussed and compared. The paper further explores some limitations and difficulties in the application of the innovative solutions and suggests an integrated and trans-disciplinary approach for sustainable drainage design.
Highlights
For a long time, urban drainage systems have existed as a vital city infrastructure to collect and convey stormwater and wastewater away from urban areas [1,2]
Unlike conventional drainage focusing on the “end-of-pipe” or “at the point of the problem” solutions [22], with small and decentralized techniques, sustainable drainage systems can largely alleviate the adverse impacts of non-point source pollution to urban water bodies [10,23,24]
Sustainable Urban Drainage System (SUDS) is known as Low-Impact Development (LID) in the United States and Canada, which describes an approach promoting the interaction of natural processes with the urban environment to preserve and recreate ecosystems for water management [54]
Summary
Urban drainage systems have existed as a vital city infrastructure to collect and convey stormwater and wastewater away from urban areas [1,2]. Unlike conventional drainage focusing on the “end-of-pipe” or “at the point of the problem” solutions [22], with small and decentralized techniques, sustainable drainage systems can largely alleviate the adverse impacts of non-point source pollution to urban water bodies [10,23,24]. Such solutions rely on local treatment, retention, re-use, infiltration and conveyance of water runoff in urban areas and are in better agreement with sustainable principles [19,25]. Sustainable drainage design is a multi-disciplinary research field that requires knowledge from specialists with different backgrounds; this paper aims to give an overview of the status and emerging studies of sustainable drainage for researchers that are interested in participating in its development
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