In certain territories, there is strong urbanization. This urbanization results in an increased surface impermeability. In doing so, soil ability to absorb rainfall decreases which in turn, considerably increases flow and therefore, the risk of flooding, soil erosion, etc. Results are quite visible in territories like Martinique which has both heavy rainfall and significant urbanization.
The goal of the project is to promote green roofs (which is an existing technique even though it is had some difficulty in development) with the goal of reducing soil impermeability and, therefore, risk of flooding.
The project is creative in that is proposes a new use with an existing technique. It is not an innovative technique since the innovation does not reside in the product itself, but in its end use.
The project allows for a more harmonized urbanization and could reduce risks for the population. However, by promoting the development of this technique, the project could also help improve lifestyle, air quality, as well as protect the environment in the city.
The project could be implemented in territories that are subjected to the risk of flooding and experiencing strong urbanization.
The triggering factor is taking into account that local authorities have an interest in this method with the perspective of reducing natural risks.
A project like this must be associated with local authorities. In fact, green roofs represent an additional cost in construction. It is, therefore, necessary that regulation (that takes into account urban regulations), as well as aid (subsidies) be put in place.
On the other hand, costs related to flooding, as well as risks for the population could be decreased.