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Beginning in the 1940s, Havana experienced an accelerated growth, tentacular and anarchic, of its urban perimeter. This expansion was characterized by the abandonment of the nineteenth-century model inherited from square blocks to assimilate a new structuring of its plots with elongated and narrow blocks. However, this process of mutation of the grid has barely had space in the specialized literature of the history of Havana. The model allowed optimizing the land from a homogeneous subdivision, which gave each house direct frontage towards the street and favored its valorization. In order to know what was the impact and meaning of this new way of urban structuring, a historical research was developed, based on the analysis of diverse written and graphic sources, complemented with a field work that allows visualizing its main features. [ABSTRACT FROM AUTHOR]

The study of the growth of large cities, in the urban periphery or the peri-urban areas specifically, it relates to environmental degradation due to urbanization, if it is estimated that since 2008 more than half of the world population living in urban areas, this sector is affected as it presents overcrowding, segregation and deterioration of physical conditions, which will impact on the social aspects within localities. This great urban growth has usually developed with the lack of environmental planning. So it is necessary to include urban development, guidelines towards environmental conservation and rehabilitation of the territory. The future of cities will depend largely on the actions taken now. As urban development inevitably requires planning urban settlements through sustainable development so as to provide alternative technologies, based on the reality of Latin American countries. In the peripheral area of the Metropolitan Zone of Guadalajara (Mexico), is taken as a case study of the town of La Venta del Astillero, which by its nature allows access and functionality to develop a set of criteria and indicators to urban sustainability, which can take as a model for other communities in the urban periphery. [ABSTRACT FROM AUTHOR]