A distributed modelling approach to assess the use of Blue and Green Infrastructures to fulfil stormwater management requirements
on the
Blue and green infrastructures (B&GI) are nature-based solutions considered as 5
particularly efficient to reduce the potential impact of new and existing developments 6
with respect to stormwater issues. In order to assess their performance at some large 7
scales compatible with urban projects, adapted distributed rainfall-runoff models are 8
required. The latest advancements of the Multi-Hydro platform have made possible 9
the representation of such B&GI. Applied in a virtual new urban development project 10
located in the Paris region, Multi-Hydro has been used to simulate the impact of 11
B&GI implementation, and their ability to fulfil regulation rules authorizing the 12
connexion to the sewer network. The results show that a combination of several 13
B&GI, if they are widely implemented, could represent an efficient tool to meet 14
regulations at the parcel scale, as they can reduce runoff volume about 90%.