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This paper discusses public spaces at night, analysing how urban lighting and its gradations of light and darkness affect experience. Urban lighting has been questioned in relation to sustainable and perceptual aspects of the night. Drawing on a methodology that explores the singularities of the nocturnal experience, this paper traces relationships between the practices of subjects and aspects of lighting identified in the Liberdade Square in Belo Horizonte, Brazil. The findings suggest perspectives for designing public spaces at night, regarding the plurality of the experience, revealing deviations from the usual practices in Brazil regarding the lights of the city. [ABSTRACT FROM AUTHOR]

This paper aims to evaluate the hydrologic impacts of urban expansion in a peri-urban catchment that drains into a reservoir of the drinking water supply system of Belo Horizonte Metropolitan Region in Brazil. Despite the metropolitan interest and efforts in protecting the catchment, a recent change in zoning ordinances allowed urban expansion in the area. To evaluate the potential hydrological impacts of this land use regulation change, scenarios of urban expansion were conceived and simulated in the model Dinamica EGO. The Storm Water Management Model (SWMM) was employed to assess potential hydrological impacts of land use change projections. Observed precipitation and water level data of the reservoir were used to calibrate and validate the hydrological model. Results confirm the impacts on several catchment hydrological processes following the progressive urban expansion in the area, particularly on volumes of infiltration, groundwater flow and runoff, increasing peak flows and flooding downstream the reservoir. [ABSTRACT FROM AUTHOR]

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