This pandemic portrayed the country's social and economic inequality in terms of health services, work and social distancing. It was found that the spread of Covid-19 on a global scale is favored by the circulation of infected people and/or objects; changing the circulation in many land and air borders that needed to have restricted and/or closed accesses, including, the reduction and even the suspension of travels inside and outside countries, whose displacements are by road, rail, river and sea. In view of this, the search for measures to face the pandemic within the various socio-economic contexts, such as in this case of urban mobility, for example, the occupancy limit of 50% of seats in intercity transport and the mandatory use of masks. Urban mobility permeates as a social right and essential service, which needs to continue to function with due health care. It is necessary to maintain social distance and take due care. For the country to remain in this confrontation, it is necessary to guarantee democratic access to the city, together with measures to protect social actors from contamination by the New Coronavirus.
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.
The demand-responsive public transport Citybus 2.0 was an innovation not only for Goiânia, but for all of Latin America. Created in 2019, this new way of getting around the city is intended to be a substitute for individual motorized transport, encouraging sustainable urban mobility. In order to analyze this new means of transport in the capital of Goiás, an online questionnaire was applied, which had 217 responses, of which 130 are users and 87 are non-users. The questionnaire had ten questions, two of which were general and eight with the purpose of collecting information on user satisfaction regarding the service provided by the new mode of transport. As for the perception of satisfaction, the items related to the cost and service range had the worst ratings.
The acoustic quality in a classroom directly impacts the educational relationship between the student and the teacher, reducing speech intelligibility. In addition, inadequate acoustic comfort burdens the vocal health of teachers. This study evaluated a classroom at the Federal University of Paraná, Campus Centro Politécnico, to verify its acoustic quality. The measurements of the acoustics descriptors: Reverberation Time (RT), Definition (D50), Central Time (Ts), Early Decay Time (EDT) were performed according to the ISO 3382-2 standard, concerning Noise Curves (NC) and Background Noise (BGN) these were evaluated by the NBR 10152 and S12.2 standards. The Speech Transmission Index (STI) was measured according to IEC 60268-16 and evaluated according to ISO 9921. The useful-detrimental ratio (U50) and the other descriptors were simulated in the ODEON software version 11. Thus, the results showed that the evaluated room did not meet the minimum requirements in terms of acoustic quality, for the descriptors RT, STI, Ts, D50, RF, and NC. Simultaneously, the RT and STI were also outside the limits established by the German and Finnish standards. Therefore, it is concluded that the evaluated classroom did not reach the minimum acoustic quality requirements.
In hospital environments, high noise levels can result in damage to patients' treatments, delaying their rest and recovery. The sound pressure level (SPL) in hospital areas during the day must not exceed 50 dB and 45 dB (A) at night, according to NBR 10.151/2019. This research aimed to carry out environmental monitoring of equivalent sound pressure levels (LAeq) at fifteen points in the vicinity of three hospitals in the central region of the municipality of Umuarama-PR, during working days, at four different times, in the months of August, September and November 2018 and continued in March 2019. To this end, we sought to map the LAeq of the points, compare them with data from municipal and federal legislation and relate the LAeq to the volume of vehicular traffic. The collected SPL were higher than recommended by NBR 10.151 at all times and measurement points, during the week, and when considering the municipal regulations, only one point is in the equipment's accuracy limit. From the statistical analysis, a very strong correlation was observed between LAeq and the total volume of vehicles, and also a strong correlation between the descriptors L10 and L50 and the volume of vehicles. The Traffic Noise Index (TNI) was also calculated and the LAeq values were compared with a subjective noise rating. The results show a scenario of noise pollution in the area and there is a need for the application of mitigating measures.
This paper articulates architecture, urbanism and mental health through the study of specific habitation, called Therapeutic Residences, for people with severe mental illness who undergo psychosocial rehabilitation. The study analyzes the insertion of these habitations in the urban scheme, in relation to the possibilities of social coexistence, access to commerce, services and other public equipment through the presentation of two case studies located in the west zone of the city of Rio de Janeiro. Besides the considerations linked to the urban space in its physical sense, it also touches on the subjective questions inherent to the exchanges and experiences possible in this context. The methodological strategies correspond to the survey and data analysis along with a qualitative approach. Information made available by City Hall and Mental Health Office, satellite images, semi-structured interviews directed to professionals involved in assisting at the Therapeutic Residences and, in the case of the habitants, open interviews were used. The results indicate the offer of services, the location and the relation of the houses with the street as fundamental factors to the stimulus of social coexistence. It is concluded that the closed condominium model exclusive to TR, in addition to the fragility and difficulties in the urban area in which it is inserted, it hinders the process of psychosocial rehabilitation and it still refers to the idea of an asylum institution. The model of a one-story house integrated to the consolidated urban fabric suggests more possibilities of creating community ties and appropriating the urban space.
Environmental certifications are a tool that aims to measure and evaluate the environmental quality of buildings and their surroundings, with potential collaboration in urban planning. Among the various cultural landscapes that constitute the cities, the historical landscapes can report unique images of urban places, acting as testimonies of the past, which establish connections with the present and serve as reference for the construction of the future. Thus, the need to work the heritage field in sustainable urban management policies is demonstrated. Based on analytical research in the fields of environmental certification and cultural landscape, and documentary research on the Urban-Landscape Set on Avenida Köeler, in the Historic Center of Petrópolis/RJ, the possibility of certifying the set through AQUA/HQE - Neighborhoods was assessed. The aim of this study is to investigate the potential of the environmental certification instrument with regard to the maintenance of historical and cultural values and to the physical conservation of this complex. In addition to meeting the objectives and indicators, the opportunity to establish an urban management program to achieve with excellence the performance of high environmental quality is evident. This study also shows that when analyzing the certification guidelines, as far as the cultural dimension is concerned, a review is needed to better cover the heritage issue, to establish specific guidelines for the conservation of existing landscapes as an incentive to the preservation and promotion of urban quality for current and future generations.
With the advancement of concrete production technologies, such as the development of additives, use of different aggregates, dosing methods, mixing and application equipment, they have contributed to the emergence of concrete with special characteristics, as is the case with light concrete. Given the above, this research continues the experimental studies of structural lightweight concrete with expanded clay (coarse aggregate) developed by Lucas and Azambuja (2020). This research presents the results of mechanical properties at older ages, 28 days 214 days for Trait 1 (AN100%) and Trait 2 (AB20%) compared to the results of 7 days of age, however, the main contribution was the measurement of thermal conductivity with construction of a low-cost prototype in accordance with NBR 15220-4:2005, using the protected hot plate method. The results showed compressive strength values of a minimum of 17,8 MPa at 7 days of age and a maximum of 28,6 MPa at 214 days, values above 17 MPa established by NBR NM 35:1995 at 28 days, as well as the tensile strength by diametrical compression, which also presented values that served as a basis for framing concrete as lightweight and structural. The evaluation of thermal conductivity was performed using a hot plate, in which the results were satisfactory between 0,44 and 0,71 W/(m.k), appropriate values to answer the question of thermal performance, thus as well as complying with the established by ABNT NBR 15220-2:2008.
Discussions about the Sustainable Development Goals (SDGs) and urban sustainability can help in the search for elucidating urban problems, considering the imprecision and conflicts that orbit around the debate on urban sustainability and the term sustainable development. This debate can contribute to future actions and proposals for urban public policies. Thus, the objective was to discuss Objective 11 of the 2030 Agenda, which deals with Sustainable Cities and Communities, from the perspective of collaborating with the debate on urban sustainability, based on the case study of Mossoró (RN). As a methodological procedure, documental and bibliographical research was carried out, around themes such as urban sustainability, sustainable development, and the 2030 Agenda, aiming to raise a theoretical reflection on these themes. Primary sources were researched in public archives of the Municipality of Mossoró and academic websites. In addition, 70 questionnaires were applied together to students and public servants of Mossoro's public university . It was found that the city only fulfills its social function when it guarantees its inhabitants, habitation; circulation, leisure; work, accessibility, education, and health. The challenges to thinking about sustainable cities are numerous and, on the other hand, the solutions are in place, and, therefore, the admission of public policies aligned with the production and adoption of technologies for sustainable cities is the possible path.