Next Article in Journal
Ancient to Recent-Past Runoff Harvesting Agriculture in Recharge Playas of the Hyper-Arid Southern Israel
Next Article in Special Issue
Cross-Analysis of Land and Runoff Variations in Response to Urbanization on Basin, Watershed, and City Scales with/without Green Infrastructures
Previous Article in Journal
Permafrost Boundary Shift in Western Siberia May Not Modify Dissolved Nutrient Concentrations in Rivers
Previous Article in Special Issue
Spatial Evaluation of Multiple Benefits to Encourage Multi-Functional Design of Sustainable Drainage in Blue-Green Cities
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessArticle
Water 2017, 9(12), 988; https://doi.org/10.3390/w9120988

Factors Influencing Stormwater Mitigation in Permeable Pavement

Department of Civil Engineering, The University of Hong Kong, Hong Kong, China
*
Author to whom correspondence should be addressed.
Received: 6 November 2017 / Revised: 4 December 2017 / Accepted: 11 December 2017 / Published: 18 December 2017
(This article belongs to the Special Issue Sponge Cities: Emerging Approaches, Challenges and Opportunities)
Full-Text   |   PDF [657 KB, uploaded 18 December 2017]   |  

Abstract

Permeable pavement (PP) is used worldwide to mitigate surface runoff in urban areas. Various studies have examined the factors governing the hydrologic performance of PP. However, relatively little is known about the relative importance of these governing factors and the long-term hydrologic performance of PP. This study applied numerical models—calibrated and validated using existing experimental results—to simulate hundreds of event-based and two long-term rainfall scenarios for two designs of PP. Based on the event-based simulation results, rainfall intensity, rainfall volume, thickness of the storage layer and the hydraulic conductivity of the subgrade were identified as the most influential factors in PP runoff reduction. Over the long term, PP performed significantly better in a relatively drier climate (e.g., New York), reducing nearly 90% of runoff volume compared to 70% in a relatively wetter climate (e.g., Hong Kong). The two designs of PP examined performed differently, and the difference was more apparent in the relatively wetter climate. This study generated insights that will help the design and implementation of PP to mitigate stormwater worldwide. View Full-Text
Keywords: sponge city; sustainable drainage system; porous pavement; stormwater management; low impact development; SWMM sponge city; sustainable drainage system; porous pavement; stormwater management; low impact development; SWMM
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Liu, C.Y.; Chui, T.F.M. Factors Influencing Stormwater Mitigation in Permeable Pavement. Water 2017, 9, 988.

Show more citation formats Show less citations formats

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

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Water EISSN 2073-4441 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top