Evaluation Of Urban Planning Strategies
With A Versatile Urban Growth Model
Author(s)
D. Vye & F. Rousseaux
Abstract
La Rochelle, France witnessed an important growth of its permanent and
seasonal population during the second half of the twentieth century. Its attractive
coastal position is the main reason for this increase, which led to a massive urban
spread, particularly in La Rochelle peripheral municipalities. Which are the
strategies used by local public authorities to take into account social and
environmental problems? While it has been very innovative since 1970 in regard
to urban ecology and sustainable development, does La Rochelle still have today
the capacity to tend towards the \“ideal sustainable city”? On the contrary, is La
Rochelle powerless, or even more complicit in the urban sprawl phenomenon?
The purpose of this paper is to focus on one factor that particularly influences
urban growth: local urban policies and planning strategies through planning
documents analysis. For this, an urban growth model based on a cellular
automata paradigm is used. In this model, the space is described as a grid, for
each non built cell, with a graduated probability of building. This probability of
building is based on the analysis of planning rules (e.g. urban planning
regulation framework). The example of the correlation between these planning
rules and local urban growth is described in this paper. The model enables the
simulation of alternative urban growth scenarios. It helps one to estimate how
alternative planning could affect non built areas. This model aims at helping the
elaboration of future planning documents. The control of La Rochelle’s urban
spread is one of the main stakes to be taken into account in the future land
development plan (Schema de COherence Territoriale: SCOT). The SCOT is
currently being elaborated in La Rochelle.
Keywords: planning strategies, sustainable city, GIS, modelling, urban spread.
Keywords
planning strategies, sustainable city, GIS, modelling, urban spread
Related Book
Other papers in this volume
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