With the global pandemic of COVID-19 completing one year, this paper intends to analyse the perceptions of public transport users about the implementation of smart city technologies. Two aspects were analysed, namely: the perception of safety regarding the use of surveillance technologies in the containment of the virus; and the perception of safety of the same technologies regarding data protection and privacy. After the identification and choice of initiatives in smart cities to be addressed, a questionnaire was prepared and made available online, in which 414 replies were considered for the final analysis, respecting the proportionality of the percentage of replies in each region to the respective population percentage. In general, technologies provide a great sense of security regarding the use of public transportation. However, they cause concern regarding data protection and privacy. From this result and with analyses in relation to the regulation of personal data, international experiences and the Brazilian reality were contrasted.
This article seeks to contribute to the argument that Ecological Urbanism is a movement or a valid concept to promote resilience, sustainability and a socio-environmental diversity that values localities, presenting a resistance to hegemonic processes and patterns of a globalized urbanism. In this sense, a literature review and analysis was carried out regarding ecological urbanism itself, as well as the metabolic rift, in order to contribute to its ecological aspect and the phantasmagoria to approach its urban side. Defending the use of historical materialism in the analysis of urban space and the city, as well as the social, political, cultural and economic relations that permeate urban ecologies.
The COVID-19 pandemic hit the world in 2020. The most prominent measure to deal with the new coronavirus was social isolation. One of the initial recommendations was for people to avoid public transport when possible. This study seeks to analyze whether there was a significant change in the mode of displacement of the population of Brazilian capitals during the COVID-19 pandemic, what is the perception and the main challenges of public transport in this context, and which contagion measures population considers safer. The methodology involved a survey of the measures adopted to combat the spread of the new coronavirus and the application of a public transport perception questionnaire before, during, and after the pandemic. The results show a reduction in modal share of trips made on public transport modes and an increase in the percentage of trips by car; and that public transport systems can be safe and perceived as that, since operators adopt adequate security measures. This is not, however, the perception of those who commuted by public transport during the pandemic. It is important that passengers perceive the system as safe for resumption of demand in the post-pandemic scenario. The key challenge lies in the financing of public transport systems, and it is necessary to analyze a restructuring that will allow to offer a high quality and safe service to the transmission of SARS-CoV-2.
Urban environments, permeated by a concomitance of internal and external factors, are increasingly subject to a standardization, logically averse to authenticity. This study proposes to conduct an analysis, in the context of smart cities, of the concept of "aura" worked by Walter Benjamin and the liquid surveillance in the form of Zygmunt Bauman's post-panoptic. We sought to identify in urban development strategies and plans, as well as in politics and relations within the city, the destruction of "aura" and the intensification of control and liquid surveillance. At the end, it indicates possible developments of the current paradigms and issues to be investigated by future research in the area.
At the end of the 1980s, sustainability became a focus of attention worldwide. More recently, with the consolidation of researches and implementations of smart cities, characteristics that permeate this concept were also studied in greater depth, in terms of smart mobility and smart environment. This study seeks to make a bibliometric analysis on smart mobility and sustainability. The results found show that the researches in this area are recent, with less than a decade of publication, in which Europe concentrates the largest percentage of participation in number of publications and citations, and the main subject addressed in the most cited works is the questioning of the connection between smart cities, smart mobility and sustainability. The map of keywords presents research gaps, which represent opportunities of scientific contribution for future studies.
Large amounts of the most diverse waste are produced in urban environments, being the landfill one of the most common forms of disposal of these wastes. The need for research on the redevelopment of landfill areas lies in the dynamism and externalities of urban spaces, which generates the need to rebuild degraded areas to promote economic, social, and environmental benefits. In Brazil, there is an expectation that open and controlled dumpsites will be replaced by sanitary landfills. In this sense, the present study seeks to identify alternatives to re-urbanization for areas of deactivated landfills as a way to increase the sustainability of cities, presenting solutions already adopted in Brazil and international trends. To this end, a bibliometric analysis and an extensive bibliographic review were conducted. The main alternatives found were: open spaces (parks, sports and leisure centers), use for agriculture, woods and reforestation areas, intensive use for commercial purposes, housing and energy generation. The main contribution of this article is to open the discussion about what will be the use of these new landfills in the post-closure phase of waste disposal, having in mind an adequate planning of these new landfills, allowing them not to become environmental liabilities when they are deactivated.
With the aim of identifying approximation points and gaps to be filled in efforts to relate research on smart and sustainable cities, this study made use of bibliometrics and scientometrics to materialize information retrieved in searches conducted in academic databases. Starting from the literature in both fields, it was sought to visualize from the quantitative data, the recent state of researches that have this objective, where it was analyzed that: (i) research that relates these fields is still incipient, and is on the rise; and (ii) there is still a technocratic prevalence and a detachment regarding theoretical advances. Both the quantitative results and the literature support these assertions, and in conjunction with the keyword clouds, one can better visualize viable opportunities on different research fronts.
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