cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.7916/d8-ndpa-pd26
title:  GRID3 Senegal Settlement Extents, Version 01

description: NOTE: This version of the Senegal settlement extents has been superseded by "GRID3 Senegal Settlement Extents, Version 01.01", now available here: https://doi.org/10.7916/d8-8s6g-2v65 The dataset consists of settlement extents across Senegal, as well as accompanying population estimates for each settlement extent. This data product contains all information contained in the previous GRID3 Senegal Settlement Extents, Version 01 Alpha product, with updates. Updates in this version include: a single settlement extent feature class (Alpha contained the same data in three (3) separate feature class layers: BUAs, SSAs & Hamlets), and new population estimate fields ("Population" and "Pop_UN_adj") for each settlement extent . This work has been undertaken as part of the Geo-Referenced Infrastructure and Demographic Data for Development (GRID3) programme. GRID3 works with countries to generate, validate and use geospatial data on population, settlements, infrastructure, and subnational boundaries. For more information, see https://grid3.org/ Keywords: Settlements, Hamlets, Built-up Areas (BUA), Small Settlement Areas (SSA) The programme is funded by the Bill & Melinda Gates Foundation and United Kingdom's Foreign, Commonwealth, Development Office. It is implemented by Flowminder Foundation, WorldPop at the University of Southampton, the United Nations Population Fund (UNFPA), and the Center for International Earth Science Information Network (CIESIN) at Columbia University.
DOI: 10.6084/m9.figshare.5666347
title: Steel-fiber concrete pipes and aggregates from the metropolitan region of Belém do Pará

description: Abstract Reinforced steel-fiber concrete pipes emerge as an interesting technological variant. In an incipient study of the locality, the main objective was to assess the technical feasibility of discontinued reinforced steel-fiber concrete pipes randomly oriented by the diametrical compression test for mechanical behaviour analysis. The second objective was to verify the water absorption and effective fiber content in the spigot, barrel and bell of the tube. In this study, DRAMIX 80/60 or 65/35 steel fibers were used (loose or glued) in the theoretical contents of 0.25%, 0.38% and 0.50%. The results indicated that the concrete pipes from the TCFA 80/60 - FCP series in the effective fiber contents of 0.36% and 0.50% and the TCFA 80/60 - FS series in all effective contents were the only ones that reached the minimum failure loading and post-cracking established by the NBR 8900 (ABNT, 2007). The water absorption results were below the maximum absorption recommended by NBR 8900 (ABNT, 2007) and there were higher levels of absorption and effective fiber content in the chain from the order spigot, barrel and bell. Finally, the technical feasibility of reinforced steel-fiber concrete pipes in the locality was shown to be timely.
DOI: 10.6084/m9.figshare.5666347.v1
title: Steel-fiber concrete pipes and aggregates from the metropolitan region of Belém do Pará

description: Abstract Reinforced steel-fiber concrete pipes emerge as an interesting technological variant. In an incipient study of the locality, the main objective was to assess the technical feasibility of discontinued reinforced steel-fiber concrete pipes randomly oriented by the diametrical compression test for mechanical behaviour analysis. The second objective was to verify the water absorption and effective fiber content in the spigot, barrel and bell of the tube. In this study, DRAMIX 80/60 or 65/35 steel fibers were used (loose or glued) in the theoretical contents of 0.25%, 0.38% and 0.50%. The results indicated that the concrete pipes from the TCFA 80/60 - FCP series in the effective fiber contents of 0.36% and 0.50% and the TCFA 80/60 - FS series in all effective contents were the only ones that reached the minimum failure loading and post-cracking established by the NBR 8900 (ABNT, 2007). The water absorption results were below the maximum absorption recommended by NBR 8900 (ABNT, 2007) and there were higher levels of absorption and effective fiber content in the chain from the order spigot, barrel and bell. Finally, the technical feasibility of reinforced steel-fiber concrete pipes in the locality was shown to be timely.
DOI: 10.6084/m9.figshare.5669053
title: Contribution of urban environment parameters on the thermal environment of a University Campus

description: Abstract This paper investigates the influence of some characteristics of the urban environment on the air temperature by considering urban parameters such as occupancy coefficient (OC), urban vegetation coefficient (UVC), sky view factor (SVF) and cover coefficient (CC). The campus of the Federal University of São Carlos, in São Carlos, Brazil was used for spatial sampling. The method uses dataloggers for air temperature measurements in different collecting points, as well as the determination of urban indexes. The data of temperature and urban indexes are related to each other by the development of Artificial Neural Networks (ANN) models considering three radii around the sampling points: 25, 50 and 100 m. Among the prediction models developed, the one with the best performance is incorporated into a Geographical Information System (GIS), allowing data simulation of other points on the campus and leading to the creation of more detailed thermal maps. The results show that the UVC was the most significant element determining the thermal patterns in the campus. Furthermore, the ANN models associated with the GIS platform may be useful tools to support actions aiming at the thermal quality of the campus.
DOI: 10.6084/m9.figshare.5666611
title: Measurement and modeling of simplified trees for daylighting computer simulation

description: Abstract Predicting the effect of arboreal vegetation on daylight performance is a complex and difficult task as it depends on accurately simulating the passage of light through its canopy. Variables such as leaf size, shape, reflectance and transparency, among others, should be considered. Thus, modeling a tree exactly simulating the real situation is impractical, not only because of the quantity and complexity of the variables, but also because of the overload of the model. In this context, the main aims of this research are: to improve the way of measuring the permeability of arboreal vegetation to daylight, which we call the "canopy gap fraction", using hemispherical photography and image analysis; and apply these measurements in simplified three-dimensional digital models to use in computational daylight simulations. Three digital models, namely "blinds", "translucent", and "gaps" were developed, simulating four tree species. The actual and simulated light levels of each one were compared and validated according to the relative MBE and RMSE indicators. The "gap" tree model, for example, was especially suitable for the Pitombeira and Carolina tree species, with relative MBE values of 0.21 and -0.12, as well as relative RMSE values of 0.02 and 0.03, respectively, proving the relevance of the developed method.
DOI: 10.6084/m9.figshare.5669131
title: Mass customization for social housing project delivery: a case study

description: Abstract Many researches have shown that social housing projects (SHP) developed in Brazil have not been meeting the users' real needs. As a consequence, many adaptations and extensions have been made that imply spending already scarce funds for this segment of the population. Moreover, very often, it results in poor quality housing. This article presents results of a study which aimed to verify the applicability of Mass Customization (MC), used by the manufacturing industry for being more effective in meeting customer demands, in the context of SHP production in the Minha Casa Minha VIda project (MCMVP). The research consisted of a literature review, searching for a conceptual overview of MC, as well as the development of a case study in a housing company. This study comprised a requirements analysis of a two-year SHP company to verify the characteristics and diversity of users´ requirements not met, and an information flow map from registering families interested in SHP (demand) to handing over the keys to the families and identifying barriers and opportunities of using MC. The results indicate the applicability of the segmented MC and, using prefabricated technology, the possibility of including specific requirements of the client before handing over the keys.
DOI: 10.6084/m9.figshare.5669131.v1
title: Mass customization for social housing project delivery: a case study

description: Abstract Many researches have shown that social housing projects (SHP) developed in Brazil have not been meeting the users' real needs. As a consequence, many adaptations and extensions have been made that imply spending already scarce funds for this segment of the population. Moreover, very often, it results in poor quality housing. This article presents results of a study which aimed to verify the applicability of Mass Customization (MC), used by the manufacturing industry for being more effective in meeting customer demands, in the context of SHP production in the Minha Casa Minha VIda project (MCMVP). The research consisted of a literature review, searching for a conceptual overview of MC, as well as the development of a case study in a housing company. This study comprised a requirements analysis of a two-year SHP company to verify the characteristics and diversity of users´ requirements not met, and an information flow map from registering families interested in SHP (demand) to handing over the keys to the families and identifying barriers and opportunities of using MC. The results indicate the applicability of the segmented MC and, using prefabricated technology, the possibility of including specific requirements of the client before handing over the keys.
DOI: 10.6084/m9.figshare.5668966
title: Diagnosing the sense of community: case study of São Lourenço housing development

description: Abstract In Brazil, recent research has pointed out resident retention as one of the problems in social housing projects. This study proposes to measure the sense of community. Based on systematizing existing tools, a questionnaire was sent to 274 housing units with 95% confidence level (α) and 5 (five) margin of error (E) to evaluate socioeconomic, behavioral and spatial data. Two other methods were also adopted: observation in loco and mapping neighbourhood relations. The study overlaps the mapped data as a multidimensional analysis to compare the variables. The results reveal spatial organisation guidelines to develop a sense of community and shows evidence of areas where there is a movement of people and social interactions. They also point out socioeconomic and behavioral aspects associated with constructing a sense of community, such as a greater number of residents, the satisfaction of living in the area and the expectation of remaining in the neighbourhood. This research contributes to synthesising existing tools, empirical studies in a case study, discussing spatial organisation of social housing developments and measuring factors considered subjective of the built environment linked to the quality of life.
DOI: 10.6084/m9.figshare.5668966.v1
title: Diagnosing the sense of community: case study of São Lourenço housing development

description: Abstract In Brazil, recent research has pointed out resident retention as one of the problems in social housing projects. This study proposes to measure the sense of community. Based on systematizing existing tools, a questionnaire was sent to 274 housing units with 95% confidence level (α) and 5 (five) margin of error (E) to evaluate socioeconomic, behavioral and spatial data. Two other methods were also adopted: observation in loco and mapping neighbourhood relations. The study overlaps the mapped data as a multidimensional analysis to compare the variables. The results reveal spatial organisation guidelines to develop a sense of community and shows evidence of areas where there is a movement of people and social interactions. They also point out socioeconomic and behavioral aspects associated with constructing a sense of community, such as a greater number of residents, the satisfaction of living in the area and the expectation of remaining in the neighbourhood. This research contributes to synthesising existing tools, empirical studies in a case study, discussing spatial organisation of social housing developments and measuring factors considered subjective of the built environment linked to the quality of life.
DOI: 10.6084/m9.figshare.5669068
title: Evaluation of the quality of urban life in horizontal condominiums in the city of João Pessoa, PB

description: Abstract The aim of this article is to analyse the quality of urban life in horizontal condominiums located in the city of João Pessoa, PB. This housing modality has proliferated and considerably changed the local real estate market, using the premise that the "quality of life" inside the condominiums is supposedly higher than the urban standard found in the city outside its walls. However, there is no local research that measures this so-called "quality of life" by using specific and scientific methods. Therefore, based on the "Quality of Urban Life Index in the city of João Pessoa" (QULI-JP) method, this study aims at filling this gap, by investigating the quality of life in the condominiums, paying special attention to their surroundings and relationship with the urban fabric. The main results in this research show how important the location is to determine the quality of urban life, as the location attributes translate the facilities and deficiencies of opportunities and urban access. The investigation also demonstrates that the quality of urban life measured does not match what is advertised by the media and the local real estate market, which places high value to areas considered distant, with low urban density which are physically and socially isolated.
DOI: 10.6084/m9.figshare.5669068.v1
title: Evaluation of the quality of urban life in horizontal condominiums in the city of João Pessoa, PB

description: Abstract The aim of this article is to analyse the quality of urban life in horizontal condominiums located in the city of João Pessoa, PB. This housing modality has proliferated and considerably changed the local real estate market, using the premise that the "quality of life" inside the condominiums is supposedly higher than the urban standard found in the city outside its walls. However, there is no local research that measures this so-called "quality of life" by using specific and scientific methods. Therefore, based on the "Quality of Urban Life Index in the city of João Pessoa" (QULI-JP) method, this study aims at filling this gap, by investigating the quality of life in the condominiums, paying special attention to their surroundings and relationship with the urban fabric. The main results in this research show how important the location is to determine the quality of urban life, as the location attributes translate the facilities and deficiencies of opportunities and urban access. The investigation also demonstrates that the quality of urban life measured does not match what is advertised by the media and the local real estate market, which places high value to areas considered distant, with low urban density which are physically and socially isolated.
DOI: 10.6084/m9.figshare.5669047
title: A framework for evaluating the complexity of projects in civil engineering portfolios

description: Abstract The importance of complexity to business performance has gained academic and managerial recognition. Knowing how to deal effectively with complexity is a differential for organizations, including temporary ones (projects). Therefore, a better understanding of the complexity of projects and their applications is necessary. However, the scientific literature shows a lack of frameworks to assess complexity in organisations, especially in the field of civil construction. Thus, the objective of this exploratory article is to propose a framework to evaluate the complexity of projects in civil engineering portfolios. The framework was created from the complexity factors in engineering projects identified by a bibliographic review, dealt with by the Analytic Network Process (ANP) decision making technique and supported by the Complexity Theory. As a result, the Multiplicity, Interdependence, Diversity (MID) framework was created and used in an example to prioritize the project portfolio of a construction company. In terms of the Technical, Organizational and Environmental (TOE) framework, the research suggests that the MID Framework is broader (evaluates any type of project), simpler (leaner structure), and more diverse (calculates the complexities of the project and the project in the portfolio) to prioritize portfolios in the area of civil engineering.
DOI: 10.6084/m9.figshare.5669047.v1
title: A framework for evaluating the complexity of projects in civil engineering portfolios

description: Abstract The importance of complexity to business performance has gained academic and managerial recognition. Knowing how to deal effectively with complexity is a differential for organizations, including temporary ones (projects). Therefore, a better understanding of the complexity of projects and their applications is necessary. However, the scientific literature shows a lack of frameworks to assess complexity in organisations, especially in the field of civil construction. Thus, the objective of this exploratory article is to propose a framework to evaluate the complexity of projects in civil engineering portfolios. The framework was created from the complexity factors in engineering projects identified by a bibliographic review, dealt with by the Analytic Network Process (ANP) decision making technique and supported by the Complexity Theory. As a result, the Multiplicity, Interdependence, Diversity (MID) framework was created and used in an example to prioritize the project portfolio of a construction company. In terms of the Technical, Organizational and Environmental (TOE) framework, the research suggests that the MID Framework is broader (evaluates any type of project), simpler (leaner structure), and more diverse (calculates the complexities of the project and the project in the portfolio) to prioritize portfolios in the area of civil engineering.
DOI: 10.6084/m9.figshare.20026920
title: Value stream mapping of a BIM based virtual construction process

description: Abstract This article reports on a case study about the virtual construction process committed to design interface solutions and the production of a coordinated 3D model to extract reliable quantitative data. The purpose is to establish a descriptive framework of this process using tools from Lean Construction approaches. Therefore, a literature review, documentary analysis and interviews with key participants were carried out from the perspective of a qualitative methodology. The study was conducted in order to address two specific issues: how the interaction of the virtual team works and; how the time distribution of the tasks occurs. The results show that the tasks that require the greatest amount of working hours are architecture modeling, as well as sanitary and electrical installations. The main contribution of this work is to provide the details of a virtual construction experience, its elements and interactions. It also presents productivity data of the tasks developed by a well-established virtual construction team.
DOI: 10.6084/m9.figshare.20026920.v1
title: Value stream mapping of a BIM based virtual construction process

description: Abstract This article reports on a case study about the virtual construction process committed to design interface solutions and the production of a coordinated 3D model to extract reliable quantitative data. The purpose is to establish a descriptive framework of this process using tools from Lean Construction approaches. Therefore, a literature review, documentary analysis and interviews with key participants were carried out from the perspective of a qualitative methodology. The study was conducted in order to address two specific issues: how the interaction of the virtual team works and; how the time distribution of the tasks occurs. The results show that the tasks that require the greatest amount of working hours are architecture modeling, as well as sanitary and electrical installations. The main contribution of this work is to provide the details of a virtual construction experience, its elements and interactions. It also presents productivity data of the tasks developed by a well-established virtual construction team.
DOI: 10.7916/d8-7778-9948
title:  GRID3 Nigeria Settlement Extents Version 01, Alpha

description: NOTE: This initial version of the Nigeria settlement extents has been superseded by the final version, "GRID3 Nigeria Settlement Extents, Version 01", now available here: https://doi.org/10.7916/d8-5hp4-p287 The database constitutes a comprehensive set of settlement polygons nationwide. It is in geodatabase format and consists of three feature classes for built up areas (BUA), small settlement areas (SSA), and hamlets (hamlets). This work has been undertaken as part of the Geo-referenced Infrastructure and Demographic Data for Development (GRID3) initiative in Nigeria. GRID3 works with countries to generate, validate and use geospatial data on population, settlements, infrastructure, and subnational boundaries. For more information, see https://grid3.org/ Keywords: built up areas, BUA, small settlement areas, SSA, hamlets, settlement aggregation, settlement extent, CIESIN, GRID3, Novel-T
DOI: 10.6084/m9.figshare.5669062
title: BIM design coordination rooms: proposal of an assessment method

description: Abstract Building Information Modeling (BIM) focuses on a tridimensional model that contains all the information of a traditional 2D documentation, among others, in a format able to be processed by a computer in a more useful way. BIM design coordination has many advantages compared to those based on 2D CAD. However, considering the drastic change in the design representation, there is a need for modifications in the physical infrastructure of coordination meeting rooms to reach all the potential benefits of BIM. This research aims to develop a method for evaluating BIM coordination rooms. Ten criteria and metrics for evaluating the quality of the layout of BIM coordination rooms were proposed. To establish the relative importance among all the proposed criteria, the AHP method of multi-criteria decision based on pair comparisons analysis was adopted. To validate the results, fourteen different layouts for the same room were analysed and evaluated. The proposed method was considered coherent as an evaluation strategy and, therefore the best alternatives could be identified. The criteria and metrics presented are useful for designing or adapting spaces for meeting the needs of BIM-based design coordination room users.