Abstract
The FullSWOF-ZG (Full Shallow Water Overland Flow with infiltration determined by Zones and Grate-inlet submodules) program was used to simulate the road-bioretention (RB) stripe and evaluate the performance of the RB stripe with three types of curb inlet. The program was revised from the open-source FullSWOF-2D program and the validation results indicated FullSWOF-ZG predicts the RB stripe performance accurately. The model cases of 27 RB with different longitude slopes (S0), cross slopes (Sx), and curb inlet lengths (Lci) for the undepressed, composite depressed, and local depressed curb inlets were established in this study. Therefore, 81 cases in total were simulated to explore the curb inlet type and design parameter’s influence on the RB stripe performance. Overall, it was found that the bioretention control efficiency will increase with the S0 decrease, Sx increase, and Lci increase. The composite depressed curb inlet was the most efficient to intercept the road runoff into the bioretention strip, the next best is the local depressed curb inlet, and the undepressed curb inlet was the least efficient. The curb inlet and grate inlet combination in composite depressed curb inlet cases were able to deal with all the road surface runoff for the small longitudinal slope (S0 = 0.1% and 0.3%) to relieve the road local flood inundation.
Highlights
Accepted: 7 June 2021To endorse sustainable urbanization plans, the Sponge City (SPC) paradigm based on green/gray stormwater management infrastructure integration was announced in 2013 as a relief countermeasure to urban syndromes such as water shortage, water pollution, flood inundation, and ecologic deterioration in China [1,2]
With the help of the validated FullSWOF-ZG program, the objective of this study is to explore the mechanism and influence of those design parameters on RB stripe performance through building numerical models for different scenarios
The local depressed curb inlet used in some SPC pilot projects in China [19] is studied here
Summary
Accepted: 7 June 2021To endorse sustainable urbanization plans, the Sponge City (SPC) paradigm based on green/gray stormwater management infrastructure integration was announced in 2013 as a relief countermeasure to urban syndromes such as water shortage, water pollution, flood inundation, and ecologic deterioration in China [1,2]. The bioretention facilities near a road could be individual isolated cells and long stripes or plots along a road (Figure 1), which receive the runoff from the road surface and/or other adjacent surfaces. The RB stripe has the same or a similar longitudinal slope of the road. The RB stripe that combine green/gray infrastructures to facilitate road runoff control through infiltration and ponding
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
