Summary of the BGD project
The combined effects of climate change and increasing urbanisation call for a
new paradigm for efficient planning and management of new urban developments
and retrofitting of existing ones to maximize ecosystem services and increase
resilience to climate change.
Major change in the existing paradigm of design and operation of blue and green
assets, currently operating as two separate systems, is urgently required. Gaps
in knowledge will be developed to demonstrate innovation in systems thus
stimulating interest from stakeholder and creating new business and greater
resilience to climate change. The project will provide synergy of the so far
“decoupled” blue and green systems to provide multifunctional solutions and
multiple benefits: increased amenity, flood risk management, urban heat island
improvement, biodiversity and resilience to drought, reduced energy requirements,
thus increased quality of life at lower costs.
Demonstration sites will be established in four countries to show benefits when blue
and green infrastructure are developed in tandem. Planning models will be upgraded
and integrated to provide improvements and predict savings in services. Associated
costs, equipment, policies and practical constraints will be identified. A Decision
Support System to explore options will be designed for professional and community use
to empower society to drive demand. A Blue-Green efficiency rating scheme will be
developed to quantify and promote potential benefits and identify best practice.
Training guidelines and e-learning tools will be developed.Job
creation will occur across a range of professions working in consultancy service and
certifications to increase the effect of greening through the synergy with “blueing”
for climate adaptation and mitigation.
Summary of the French contributions
The BG problem is so challenging for a metropolis like Paris, that a multiscale
approach is indispensable for both the Physico-Environmental Subsystem (PES) and the
Socio-Economical Subsytem (SES), as well as their strong interactions. Therefore, a
palette of case studies will be studied in Paris region, ranging from a plot scale to
the regional scale.
The Paris-East Blue Green Wave: The lead FR research and demo site will be located in the
heart of the Paris-East Cluster for Science and Technology, in front of Ecole des Ponts.
“Blue“-technology experimental, training and expo site at the large wavy-form vegetated roof
(“Green Wave” which just changed name to “Blue-Green Wave”) will be created within the BGD
project. This will be a pioneering site where an initially amenity (decorative) design project
will be transformed into the BGD research oriented one (the relevant ministry swiftly approved
the change of concept based on the convincing BGD paradigm). Water fluxes and the BG functioning
of the Blue Green Wave will be monitored in details. For instance, in complement to high
resolution rainfall data (≈100 m resolution) provided by an X- band radar (RainGain project),
the Green Wave will be heavily instrumented to get rainfall data at scale resolution of the
size of the rainfall drops and their dynamics at a plot scale. These devices will be specified
in agreement with the foreseen installations on the wave (gardens, art works). This will enable
us to better estimate the drop impacts on the substratum and the resulting pollutant
mobilisation, as well the infiltration processes. The Green Wave site will monitor the impact
of vegetated areas for bio-filtration that reduces both water pollution and surface runoff. In
collaboration with the site architect and legislative institutions, this experimental knowledge
will contribute to the development of new norms concerning the installation of vegetated roofs,
in particular over administrative and industrial buildings. The site is also equipped with
water storage capacities that strongly encourage future development of multifunctional green
spaces that store excess volumes of water during heavy storms and release them afterwards.
On-site conference facilities and modern computer rooms provide facilities for e-education,
BGD technology modelling training as well as public promotion events.
AquaFutura platform: Installed on the site of a former water-production factory in
Ivry-sur-Seine, as from 2013 AquaFutura will be a platform dedicated to research and
innovation in the sector of water and the environment. Site facilities include an area of 9
hectares with about thirty open-air basins (43.000 m2), several industrial buildings, including
laboratories of control, analyses and research. With a new cluster of academic and capacity
building institutions will bring together researches, students and entrepreneurs to implement
a large spectrum of BGD related experiments. A major mission of AquaFutura is to provide an
adequate framework for the development of start-ups, this will be particularly used for BGD.
Demonstration sites at the Seine-Saint-Denis and Val-de-Marne counties will be used to regain
the experience on non-structural measures by these counties, in particular with several new
monitoring campaigns for selected sites (e.g. school green roofs, pervious parkings, retention
and detention ponds ...). This will provide partners with information related to the French BGD
practices, so that this information could be included in the tool development process in WP 3.
BG strategies for Grand Paris: A BG efficiency-rating scheme will be implemented to quantify
and promote potential benefits and identify best practices. A particular attention will be paid
on the present debate on a massive vegetalisation of roofs, as well as the development of
small urban lakes, both for climate adaptation and mitigation. The BGD ParisExpo event at one
of the museums of the city of Paris (e.g., Pavillon de l’eau or Maison des Jardins) will be devoted to promote best greening practices for climate adaptation in Grand Paris.