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Author(s): M. G. Miguez, F. C. B. Mascarenhas & L. P. C. Magalhães
Abstract:
The urbanising process usually changes the patterns of land use and aggravates
urban flood problems.
Developing countries do not always have the basic
infrastructure implemented to follow the increasing urbanization and this lack of
planning makes the situation even worse.
Traditional approaches to urban flood
problems basically modify the drainage net in order to suite them to receive
discharges of the urbanized areas.
This approach is being complemented or
replaced by newer concepts, that tend to consider the basin as a system, using
distributed interventions, focusing on infiltration and storage measures, trying to
restore pre-urbanization flow patterns.
These measures integrate the stormwater
management in terms of quantity and quality control.
In highly urbanized
environments, however, it is not always simple to find free adequate areas to
settle hydraulic engineering structures.
In this situation, there is an interesting
option related to the use of multifunctional landscapes, where urban solutions
receive additional hydraulic functions, bringing urban planning closer to
hydraulic engineering.
In this context, this article presents a case study, in which
is shown Joana river basin that drains the centre-north region of Rio de Janeiro
City, in Brazil.
The flooding patterns of the basin and the introduction of
traditional engineering measures by the City Hall are studied here, and a set of
alternative interventions is presented, pointing to multifunctional landscapes and
articulating Architecture, Urbanism and Engineering to aid in the solution of
urban flood control problems, especially in a developing country reality.
A
mathematical model is used to aid the simulation of these different scenerios.
Keywords:
multifunctional landscapes, urban flood control, mathematical
modelling of future scenery.
...
Pages: 10
Size: 890 kb
Paper DOI: 10.2495/SPD051542
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