Urban waters

urban Waters
Carlos E. M. TuCCi
Urban development

u

urban structure

rban development accelerated in the second half of the 20th century with the concentration of the population in reduced space. this triggered greater competition for the same natural resources (land and water) and led to destruction of natural biodiversity. the environment formed by natural space and by the population (socio-economic and urban) is a living and dynamic being that generates a set of interconnected effects, which if not controlled, can lead the city to chaos. the objective of sustainable urban development is to improve the quality of life of the population as well as environmental conservation. It is also essentially integrating to the degree to which good quality of life is only possible in a well conserved environment that can meets the needs of the population supporting the harmony of man and nature. the principal components of urban management are: • land use planning and management: by definition this involves the development of a Master Plan to determine how the city should be occupied and the corrections that need to be made in relation to the past and present; • road, water, energy, communication and transportation infrastructure: planning and management of this infrastructure can be implanted by public or private agencies, but which should be regulated by a municipality; • Socio-environmental management: the management of the urban environment is conducted by municipal, state or federal entities, according to the institutional structure. the management involves the evaluation and approval of projects, monitoring, inspection and research so that urban development is socio-environmentally sustainable.

indicators urban systems1 are primordially areas of consumption and housing. they have different sizes or composed through the integration of various areas as Metropolitan Regions. In 1900, 13% of the global population was urban; it is now 50%, occupying only 2.8% of