Next Article in Journal
Distribution and Geochemical Processes of Arsenic in Lake Qinghai Basin, China
Previous Article in Journal
Using the General Regression Neural Network Method to Calibrate the Parameters of a Sub-Catchment
Article

Determination of Optimal Meshness of Sewer Network Based on a Cost—Benefit Analysis

Department of Hydrosciences, Institute for Urban Water Management, TU Dresden, 01069 Dresden, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Maria Mimikou
Water 2021, 13(8), 1090; https://doi.org/10.3390/w13081090
Received: 23 March 2021 / Revised: 13 April 2021 / Accepted: 13 April 2021 / Published: 15 April 2021
(This article belongs to the Section Urban Water Management)
Urban pluvial flooding occurs when the capacity of sewer networks is surcharged due to large amounts runoff produced during intense rain events. Rapid urbanization processes and changes in climate increase these events frequency. Effective and sustainable approaches for the reduction in urban floods are necessary. Although several gray, green and hybrid measures have been studied, the influence of network structure on flood occurrence has not yet been systematically evaluated. This study focuses on evaluating how different structures of a single urban drainage network affect flood volumes and their associated damages. Furthermore, a cost–benefit analysis is used to determine the best network structure. As a case study, a sewer subnetwork in Dresden, Germany was selected. Scenarios corresponding to different layouts are developed and evaluated using event-wise hydrodynamic simulation. The results indicate that more meshed structures are associated with lower flood volumes and damage. Moreover, all analyzed scenarios were identified as cost-effective, i.e., the benefits in terms of flood damage reduction outweighed the costs related to pipe installation, operation and maintenance. However, a predominantly branched structure was identified as the best scenario. The present approach may provide a new cost-effective solution that can be integrated into the development of different mitigation strategies for flood management. View Full-Text
Keywords: Meshness degree; flood occurrence; flood damage estimation; urban drainage network Meshness degree; flood occurrence; flood damage estimation; urban drainage network
Show Figures

Figure 1

MDPI and ACS Style

Reyes-Silva, J.D.; Frauches, A.C.N.B.; Rojas-Gómez, K.L.; Helm, B.; Krebs, P. Determination of Optimal Meshness of Sewer Network Based on a Cost—Benefit Analysis. Water 2021, 13, 1090. https://doi.org/10.3390/w13081090

AMA Style

Reyes-Silva JD, Frauches ACNB, Rojas-Gómez KL, Helm B, Krebs P. Determination of Optimal Meshness of Sewer Network Based on a Cost—Benefit Analysis. Water. 2021; 13(8):1090. https://doi.org/10.3390/w13081090

Chicago/Turabian Style

Reyes-Silva, Julian D.; Frauches, Ana C.N.B.; Rojas-Gómez, Karen L.; Helm, Björn; Krebs, Peter. 2021. "Determination of Optimal Meshness of Sewer Network Based on a Cost—Benefit Analysis" Water 13, no. 8: 1090. https://doi.org/10.3390/w13081090

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop