Potentials and limitations for water sensitive Urban design in copenhagen

A multidisciplinary case study

verfasst von

O. Fryd, A. Backhaus, H. Birch, C. Fratini, S. T. Ingvertsen, J. Jeppesen, T. E.P. Petersen, M. K. Roldin, T. Dam, W. R. Torgard, M. B. Jensen

Abstract

WSUD is emerging in Denmark. An integrated multidisciplinary case study has investigated the options for WSUD retrofitting in a 15 km² combined sewer catchment area in Copenhagen, Denmark, with the aim of reducing combined sewer overflows. The study was developed in collaboration with the City of Copenhagen and its water utility board, and involved researchers representing hydrogeology, sewer hydraulics, environmental chemistry, economics, engineering, urban planning and landscape architecture. The resulting multi-level catchment strategy, with a target of disconnecting 60% of the impervious area, suggests the implementation of four substrategies. First, disconnection is focused within sites that are relatively easy to disconnect, due to water quality, soil conditions, and the provision of open space. Secondly, up to 30% of the annual stormwater run-off is infiltrated in areas with relatively deep groundwater levels. Third, neighbourhoods located near low-lying wetland areas are disconnected and the sloping terrain is utilised for the conveyance of stormwater runoff. Fourth, the promotion of coherent urban green infrastructures is linked with WSUD transformations, urban greening and urban climate-proofing. In combination, these make the goal of 60% disconnection achievable. The study has generated four scientific papers so far, as well as concrete outputs which are partially adopted and currently under full-scale testing by the City of Copenhagen.

Externe Organisation(en)

Københavns Universitet
Technical University of Denmark
ALECTIA A/S

Typ

Aufsatz in Konferenzband

Publikationsdatum

2012

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Tief- und Ingenieurbau, Bauwesen, Architektur

Ziele für nachhaltige Entwicklung

SDG 13 – Klimaschutzmaßnahmen