FCT - Artigos publicados em periodicos

URI Permanente para esta coleçãohttp://200.137.215.59//handle/ri/11335

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Desempenho urbano-logístico em terminais de carga aérea: avaliação multicritério aplicada ao SBGO
(Universidade Federal de Goiás, 2025-07-25) Bandeira, Michelle Carvalho Galvão da Silva Pinto; Silva Neto, Dário Pulquerio da; Braga, Isabelle Yruska de Lucena Gomes; Lima, Izabelle Marie Trindade Bezerra da Costa; Falcão, Viviane Adriano
This study aims to prioritize performance indicators for evaluating the service level of air cargo terminals, focusing on the case of the Cargo Terminal at Santa Genoveva International Airport (SBGO), located in Goiânia, Brazil. The research adopts a threefold methodological approach: (i) a systematic review of national and international literature on air cargo terminal performance assessment, with emphasis on multicriteria decision-making methods; (ii) an empirical field investigation conducted with the terminal’s logistics operator (PACLOG); and (iii) the application of the Analytic Hierarchy Process (AHP) to determine the relative importance of validated service attributes. The results reveal that the criteria “Infrastructure,” “Time,” “Location,” and “Cost” are the most significant in shaping perceptions of logistical and operational performance, with infrastructure emerging as the highest-priority factor. At the subcriterion level, the most critical elements include physical space and safety measures (infrastructure), cargo dwell time (time), and variables related to airport charges and freight revenue (cost). The final analysis presents the global impact of each indicator, ranking them by priority and visualizing the hierarchy through tables and bar charts. From a practical standpoint, the findings offer technical support for public policy formulation, investment prioritization, operational process improvement, and urban-logistics planning in airport surroundings. The proposed model is replicable across other Brazilian cargo terminals and contributes to a more integrated, evidence-based, and decision-oriented approach in the air cargo sector. Moreover, the study addresses significant gaps in the academic literature by incorporating urban-logistical efficiency into regional airport infrastructure assessment.
Análise espacial para identificação de local para implantação de um cluster logístico a partir de variáveis geoeconômicas para o Estado de Goiás/Brasil
(Universidade Federal de Goiás, 2025-05-27) Santos, Alex Mota dos; Almeida, Cristiano Farias; Neves, Mateus Silva das
Growth poles are the reference for urban growth in cities, and their classical definition refers to the growth of a region driven by a leading industry. This concept can be used to explain the geographic concentrations of industries, also known as productive agglomerations. An example of these is a logistics cluster, which is a group of companies within the same supply chain that stands out for favoring businesses that require intensive logistics. Thus, the present study aimed to develop a spatial analysis to identify a logistics cluster based on geo-economic variables for the State of Goiás, Brazil. The proposed methodology was based on Weber’s Industrial Location Theory and the Geographic Accessibility Index, implemented in a Geographic Information System (GIS). Using this methodology, the study identified the municipality of Trindade, located in the Metropolitan Region of Goiânia, as the best location for a logistics cluster applied to the tomato production chain.
Assessment and geoconservation of paleontological heritage in Northern Tocantins and Southwestern Maranhão, Brazil
(2025) Lopes, Raylon da Frota; Lima, Cláudia Valéria de; Candeiro, Carlos Roberto dos Anjos
In the central-northern region of Brazil, specifically in the northern part of the state of Tocantins and the southwestern part of the state of Maranhão, there are known fossiliferous outcrops of notable scientific importance. These include the Natural Monument of the Fossilized Trees of Tocantins, in Filadélfia (Permian); the geosite containing theropod dinosaur footprints in Fortaleza dos Nogueiras, Maranhão (Triassic); and the geosite containing sauropod dinosaur footprints in Itaguatins, Tocantins (Cretaceous). Assessments of the scientific value, degradation risk, and potential for educational and touristic use were carried out on these geosites. The methodology used for quantification was available on the Geossit website, administered by the Geological Survey of Brazil (CPRM). Overall, the geosites obtained moderate to high scientific value and educational and touristic use potential, with low degradation risk for the outcrops of the Tocantins Fossilized Trees Natural Monument, medium for the Theropoda footprints, and high for the Sauropoda footprints. Geoconservation actions are proposed for each of these areas to make a pragmatic contribution, through the paleontological heritage, to socioeconomic development and the protection of the natural heritage of the area under study.
Biomechanics and morphological comparisons of the caudal region of titanosaurs from the Cretaceous of Brazil: Paleobiology and paleoecology inferences
(2025) Vidal, Luciano da Silva; Bergqvist, Lílian Paglarelli; Candeiro, Carlos Roberto dos Anjos; Bandeira, Kamila Luisa Nogueira; Tavares, Sandra Aparecida Simionato; Ribeiro, Theo Baptista; Pereira, Paulo Victor Luiz Gomes da Costa
Biomechanical studies in sauropod dinosaurs are mainly focused on neck posture and feeding strategy. Few works investigate other aspects such as tail movement and function, especially in the clade Titanosauria, the most diverse within Neosauropoda. This study applied biomechanical concepts of neutral pose (cartilaginous neutral pose) and range of motion to verify the shape and direction of the caudal region of the advanced titanosaurs Adamantisaurus mezzalirai and Baurutitan britoi, in addition to comparing it with other titanosaurs (e.g., Arrudatitan maximus, Lirainosaurus astibiae, and Trigonosaurus pricei). As a result, the tails analyzed have a sigmoidal-convex shape, probably close to the ground (but not touching it). The sigmoidal-convex shape could increase the moment arm for the M. caudofemoralis longus, making it possible to use the tail as a fifth stabilizing member. This work expands our knowledge about sauropod dinosaurs by exposing a diversity of shapes for the tails of titanosaur sauropods and brings new possibilities for how these dinosaurs could use their tails.
A large notosuchian (Mesoeucrocodylia) tooth from the Adamantina Formation of Goiás state, Brazil
(2025) Candeiro, Carlos Roberto dos Anjos; Brusatte, Stephen L.; Ribeiro, Theo Baptista; Pol, Diego; Vidal, Luciano da Silva; Paula, Thainara Aparecida Divina Arruda de; Ferreira, Bruno Martins; Lima, Cláudia Valéria de; Pereira, Paulo Victor Luiz Gomes da Costa
Here, we describe an oxidized mesoeucrocodylian tooth from the Adamantina Formation (Bauru Group) of southern Goiás state in Brazil. Despite poor preservation, several morphological features permit identification as an indeterminate sphagesaurian: bulbous triangular crown with a ‘teardrop-shaped’ cross-section; and strong constriction between the crown and deep root. The Adamantina Formation tooth is not only the first notosuchian recorded from the mid-west region of Brazil, but also represents one of the largest sphagesaurians ever described.
Overabundance of abelisaurid teeth in the Açu Formation (Albian-Cenomanian), Potiguar basin, northeastern Brazil: morphometric, cladistic and machine learning approaches
(2025) Ribeiro, Theo Baptista; Vecchietti, Luiz Felipe Santos; Candeiro, Carlos Roberto dos Anjos; Canale, Juan Ignacio; Bergqvist, Lílian Paglarelli; Brito, Paulo Marques Machado; Pereira, Paulo Victor Luiz Gomes da Costa
The Açu Formation (Albian-Cenomanian), Potiguar Basin, Northeastern Brazil, has yielded a great variety of fossil terrestrial vertebrates, with theropod dinosaurs standing out as one of the most diverse among them, and a large part of this diversity being known only by isolated teeth. In this study we assess 43 new isolated theropod teeth from this unit through phylogenetic, linear discriminant, and machine learning analyses. We developed an app, Dino Toothier, in which those models can be tested solely by uploading tooth measurements in a file, in order to facilitate and democratize the usage of the machine learning models. Our results revealed not only the first noasaurid record for the Açu Formation but also an unexpectedly high occurrence of abelisaurid specimens for a “Mid” Cretaceous unit in Western Gondwana, with four morphotypes related to different positions along the tooth row. We address this overabundance of abelisaurid teeth through different approaches, yet neither the high tooth replacement rates seen in this clade, the paleoenvironment of the Açu Formation, nor taphonomic preservation biases yield a proper explanation for it. We postulate that the lack of large sauropods in this unit might have hindered the presence of large theropods such as Carcharodontosauridae, favoring instead the predominance of the more generalist abelisaurids. Further studies on the taphonomy and paleoecology of the Açu Formation might reveal a more concrete reason for this abundance of abelisaurids.
Relato de experiência: mutirão nacional escoteiro de ação ecológica
(2025) Aguiar, Elizabeth Silva de; Candeiro, Carlos Roberto dos Anjos
This experience report addresses the Mutirão Nacional Escoteiro de Ação Ecológica (MutEco) activity, held on September 22, 2022, in the Bosque dos Buritis, in the city of Goiânia, state of Goiás. Young people from ‘the Boy Scout Groups of the First District participated, but I focused on the Goyaz Boy Scout Group - 9th GO. The Scout Movement is a global organization present in virtually every country in the world. Its goal is to contribute to the informal education of young people, creating an environment of friendship and brotherhood, in constant contact with nature. The activity is held annually and seeks to provide young people, within the principles of the Scout Movement, to foster comprehensive personal development, with knowledge and awareness of the importance of the environment for human beings.
Geoeducação no âmbito formal de ensino no Brasil a partir da Geografia escolar: análise das temáticas físico naturais na base nacional comum curricular
(2025) Ferreira, Bruno Martins; Lima, Cláudia Valéria de; Candeiro, Carlos Roberto dos Anjos
Geoeducation can be addressed through Geoconservation, within both formal and non-formal educational settings. Geoconservation is essentially the conservation of terrestrial Geodiversity. This study aims to discuss the concept of Geoeducation and analyze its presence in Brazilian Formal Education, based on school Geography and the physical-natural themes outlined in the National Common Curricular Base (BNCC). The research adopted a qualitative approach, grounded in literature review and document analysis, guided by the hermeneutic method. The investigation focused on the competencies, knowledge objects, and skills related to the Geography curriculum component in the final years of Elementary Education. The results demonstrate that the BNCC includes several contents that address physical aspects of nature, such as rocks, landforms, climate, vegetation, soil, and water resources, enabling pedagogical practices aimed at developing critical geographic and socio-environmental awareness. In this sense, it is concluded that, although Geoeducation is not yet explicitly incorporated into curricular guidelines, its principles are present transversally, offering room for educational actions that integrate scientific knowledge, students' everyday experiences, and a commitment to the planet’s geoconservation.
Assessment of the scientific value, degradation risk and potential educational and tourist use of geosites of Paraúna State Park in Goiás, Brazil
(2025) Ferreira, Bruno Martins; Lima, Cláudia Valéria de; Candeiro, Carlos Roberto dos Anjos
The present study aimed to quantify the scientific value, degradation risk, potential educational, and tourist use of Serra das Galés and Serra da Portaria geosites of Paraúna State Park, in the municipality of Paraúna, state of Goiás, Brazil. Analysis of the geosites used the quantification method of the digital platform Geossit, managed by CPRM Serviço Geológico do Brasil. Serra das Galés is a site of geomorphological interest that occurs in the sandstones of the Aquidauana Formation. The strata of the unit include reddish sediments with fine to medium grains rich in iron oxide.There is a variety of geoforms in the sandstone rocks of Serra das Galés, including animals, objects and human figures. The Serra da Portaria site is of paleontological and geomorphological interest and some of its features are preserved in a sandstone level of the Aquidauana Formation (Permian-Carboniferous). The upper portion contains portions of the Adamantine Formation (Turonian-Santonian), where isolated residues of indeterminate tetrapods and carnivorous dinosaurs were recently reported. Both geosites are considered of national relevance.
O fôlder como material didático do Parque Estadual de Paraúna em Goiás/Brasil
(2025) Ferreira, Bruno Martins; Lima, Cláudia Valéria de; Candeiro, Carlos Roberto dos Anjos
El presente estudio tiene como objetivo abordar las carpetas del Parque Estadual de Paraúna, como propuesta de material didáctico, en el proceso de construcción de conocimiento para la Geoeducación. Para la elaboración de las carpetas se utilizó la transposición didáctica propuesta por Chevallard (1991), en la que plantea que cuando se selecciona el conocimiento científi co como contenido didáctico, que debe ser enseñado en el ámbito escolar, éste sufre ciertas adaptaciones, una transposición didáctica, hasta su conversión en conocimientos enseñados. Estas carpetas también fueron construidas a partir de estudios presentados sobre los geositios Serra das Galés y Serra da Portaria, presentes en el Parque Estadual de Paraúna. Estos materiales didácticos presentan aspectos importantes de la Geoeducación, en los que los contenidos tratados son mediados por los docentes en el aula e internalizados por los estudiantes, dando como resultado el proceso de construcción del conocimiento. Además de contribuir a la conservación y preservación de la Geodiversidad presente en el parque.
First record of Mesoeucrocodylia osteoderm from the Late Cretaceous Bauru Group, State of Goiás, Brazil
(2025) Paula, Thainara Aparecida Divina Arruda de; Candeiro, Carlos Roberto dos Anjos; Dias, Tamires do Carmo; Vidal, Luciano da Silva; Pereira, Paulo Victor Luiz Gomes da Costa
Los Crocodyliformes del Cretácico Tardío de América del Sur fueron uno de los componentes principales de las faunas de tetrápodos halladas en rocas del Grupo Bauru en los estados de Goiás, Minas Gerais y São Paulo, Brasil. La presencia de osteodermos ha sido reportada en especímenes articulados o encontrados aislados en el registro paleontológico. En el presente trabajo describimos el primer osteodermo de Mesoeucrocodylia del Campaniano-Maastrichtiano de la Formación Marília (Grupo Bauru) del estado de Goiás. El espécimen Paleo-UFG-114 tiene una forma cuadrilátera, una textura externa rugosa con corrosión orientada radialmente, una faceta interna con presencia de surcos intersec-tados, forámenes en las regiones interna y externa y una quilla poco desarrollada. Estas características los diferencian de los osteodermos de dinosaurios titanosaurios encontrados en las rocas de esta unidad geológica. La presencia de Paleo-UFG-114 en el estado de Goiás reafirma que los mesoeucrocodilianos fueron componentes importantes de la fauna de reptiles y contribuye a aumentar el conocimiento sobre la distribución geográfica del grupo en esta región poco explorada del centro de Brasil.
Late Cretaceous mosasaurids of northeastern Brazil: a summary of their record and a paleobiogeographical survey
(2025) Candeiro, Carlos Roberto dos Anjos; Foffa, Davide; Brusatte, Stephen L.; Fernandez, Marta Susana; Diniz Filho, José Alexandre Felizola; Vidal, Luciano da Silva; Dias, Tamires do Carmo; Lima, Isabela; Silva, Tatiane Regina da
The coastal region of northeastern Brazil holds one of the most important records of mosasaurids from the Late Cretaceous of South America. Analysis of these discoveries allowed us to create a picture of the composition of the fauna, as well as the diversity and paleobiogeography of these clades. In the region, the mosasaurid fossils are contained in Cenomanian to Maastrichtian geological units of epicontinental marine origin, in the Cotinguiba (Sergipe-Alagoas Basin), Alcântara (São Luís Basin), Itamaracá (Paraíba Basin), Calumbi (Sergipe-Alagoas Basin), and Gramame (Paraíba Basin) formations. Paleogeographic data corroborate that these deposits represent low-latitude equatorial environments. The Brazilian fauna is represented by fourteen taxa from one family (Mosasauridae), two subfamilies (Mosasaurinae: Prognathodontini, Globidensini and Mosasaurini; Plioplatecarpinae: Plioplatecarpini), and some indeterminate mosasaurid specimens. Mosasaurids from the northeastern region of Brazil resemble Late Cretaceous marine reptiles from western Africa (Angola, Congo, and Morocco), suggesting faunal continuity in the seaway that bridged these areas. The study of this marine fauna is crucial to understanding the evolutionary and paleobiogeographic history of the group during the opening of the South Atlantic Ocean.
Recycling process and proto-kimberlite melt metasomatism in the lithosphere-asthenosphere boundary beneath the Amazonian Craton recorded by garnet xenocrysts and mantle xenoliths from the Carolina kimberlite
(2022) Gervasoni, Fernanda; Jalowitzki, Tiago; Rocha, Marcelo Peres; Weska, Ricardo Kalikowski; Novais-Rodrigues, Eduardo; Rodrigues, Rodrigo Antonio de Freitas; Bussweiler, Yannick; Barbosa, Elisa Soares Rocha; Berndt, Jasper; Dantas, Elton Luiz; Souza, Valmir da Silva; Klemme, Stephan
Here we present new data on the major and trace element compositions of silicate and oxide minerals from mantle xenoliths brought to the surface by the Carolina kimberlite, Pimenta Bueno Kimberlitic Field, which is located on the southwestern border of the Amazonian Craton. We also present Sr-Nd isotopic data of garnet xenocrysts and whole-rocks from the Carolina kimberlite. Mantle xenoliths are mainly clinopyroxenites and garnetites. Some of the clinopyroxenites were classified as GPP–PP–PKP (garnet-phlogopite peridotite, phlogopite-peridotite, phlogopite-K-richterite peridotite) suites, and two clinopyroxenites (eclogites) and two garnetites are relicts of an ancient subducted slab. Temperature and pressure estimates yield 855–1102 C and 3.6–7.0 GPa, respectively. Clinopyroxenes are enriched in light rare earth elements (LREE) (LaN/YbN = 5–62; CeN/SmN = 1–3; where N = primitive mantle normalized values), they have high Ca/Al ratios (10–410), low to medium Ti/Eu ratios (742–2840), and low Zr/Hf ratios (13–26), which suggest they were formed by metasomatic reactions with CO2-rich silicate melts. Phlogopite with high TiO2 (>2.0 wt.%), Al2O3 (>12.0 wt.%), and FeOt (5.0–13.0 wt.%) resemble those found in the groundmass of kimberlites, lamproites and lamprophyres. Conversely, phlogopite with low TiO2 (<1.0 wt.%) and lower Al2O3 (<12.0 wt.%) are similar to those present in GPP-PP-PKP, and in MARID (mica-amphibole-rutile-ilmenite-diopside) and PIC (phlogopite-ilmenite-clinopyorxene) xenoliths. The GPP-PP-PKP suite of xenoliths, together with the clinopyroxene and phlogopite major and trace element signatures suggests that an intense proto-kimberlite melt metasomatism occurred in the deep cratonic lithosphere beneath the Amazonian Craton. The Sr-Nd isotopic ratios of pyrope xenocrysts (G3, G9 and G11) from the Carolina kimberlite are characterized by high 143Nd/144Nd (0.51287–0.51371) and eNd (+4.55 to +20.85) accompanied with enriched 87Sr/86Sr (0.70405–0.71098). These results suggest interaction with a proto-kimberlite melt compositionally similar with worldwide kimberlites. Based on Sr-Nd whole-rock compositions, the Carolina kimberlite has affinity with Group 1 kimberlites. The Sm-Nd isochron age calculated with selected eclogitic garnets yielded an age of 291.9 ± 5.4 Ma (2 r), which represents the cooling age after the proto-kimberlite melt metasomatism. Therefore, we propose that the lithospheric mantle beneath the Amazonian Craton records the Paleozoic subduction with the attachment of an eclogitic slab into the cratonic mantle (garnetites and eclogites); with a later metasomatic event caused by proto-kimberlite melts shortly before the Carolina kimberlite erupted.
Isótopos estáveis (C, O, S) e geoquímica de rocha total de carbonatitos da província Ígnea Alto Paranaíba – SE Brasil
(2016-09) Gomide, Caroline Siqueira; Brod, José Affonso; Vieira, Lucieth Cruz; Junqueira-Brod, Tereza Cristina; Petrinovic, Ivan Alejandro; Santos, Roberto Ventura; Barbosa, Elisa Soares Rocha; Mancini, Luis Henrique
The present work investigates the relationship between whole-rock geochemistry and stable isotope composition from carbonatites belonging to the Tapira, Araxá, Salitre, Serra Negra, Catalão I, and Catalão II alkaline-carbonatite complexes of the Alto Paranaiba Igneous Province (APIP), central Brazil and from the Jacupiranga Complex, of the Ponta Grossa Province, southeast Brazil. The APIP complexes are ultrapotassic, comprising bebedourites, phoscorites, nelsonites, and carbonatites, whereas Jacupiranga is a sodic complex composed of ijolite-series rocks, syenites, carbonatites, and alkaline gabbros. The geochemistry data allied to mineralogical constraints allowed us to classify the carbonatites into five groups, and to devise a chemical index (BaO/(BaO+SrO)) to gauge the magmatic evolution of the studied carbonatites.The APIP carbonatites evolve from apatite-rich calciocarbonatites toward Ba-, Sr-, and rare earth element (REE)-rich magnesiocarbonatites. This evolution is mostly driven by apatite, phlogopite, dolomite, and calcite fractionation and consequent enrichment in monazite, norsethite, and strontianite. Stable isotope data show a wide diversity of petrogenetic processes in play at the APIP, relatively to the Jacupiranga Complex, which is interpreted as a result of the shallower intrusion levels of the APIP complexes. Such shallower emplacement, at low lithostatic pressure, allowed for a complex interplay of fractional crystallization, liquid immiscibility, degassing, and interaction with hydrothermal and carbohydrothermal systems.
Variações composicionais de olivinas do complexo alcalino-carbonatítico de Salitre, MG
(2012-12) Barbosa, Elisa Soares Rocha; Brod, José Affonso; Cordeiro, Pedro Filipe de Oliveira; Brod, Tereza Cristina Junqueira
Compositional variation of olivines from Salitre alkaline-carbonatite complex, MG. The Salitre alkaline-carbonatite-phoscorite complex belongs to the Alto Paranaíba Igneous Province and consists of three separate bodies. Salitre I is a central, kidney-shaped body composed dominantly of bebedourites, with swarms of ring dykes of carbonatites and phoscorites; Salitre II and III are bebedourite-dominated smaller intrusions, respectively to the north and to the south of Salitre I. Olivine occurs in bebedourites, phoscorites and carbonatites, with forsterite content ranging from 83 to 98 mol. %. The least evolved rocks (bebedourites) show lower forsterite content than the more evolved members (phoscorites and carbonatittes), and olivine from carbonatites have the highest forsterite content. The compositional range of forsterite content observed in bebedourites is related to crystal fractionation. In phoscorites, forsterite content increases with decreasing whole-rock MgO, and in carbonatites it decreases, with the decreasing whole-rock MgO. Variations in CaO and MnO may occur in Salitre olivines. The controls of their distribution are unclear and may suggest local variations in the concentration of these elements in the magma, rather than a crystallographic control of olivine. NiO contents show differences between olivines from bebedourites, and olivines from phoscorites and carbonatites. This discrepancy may be related to the removal of Ni from the system by early fractionation of Ni-rich olivine from a silicate parental magma or, alternatively, by Ni removal in an immiscible sulfide liquid.
Utilização de uma ferramenta de simulação de sistemas na logística de uma empresa sucroalcooleira
(2015-08) Facchioli, Guilherme Péres; Severino, Maico Roris
It’s known that Goiás has been in a large growing of exportation, by the agricultural and livestock products. In this sense, companies must be aware of their logistics costs, which consume an estimable share of the total. So, it’s crucial to them have an efficient management’s system of the supply chain. On this, the paper shown based by a computational simulation system tool, the gains made by the sugar and alcohol company, when practices are adopted to coordinate its flow of matter and information.
Análise do tema economia solidária nas produções dos programas de pós-graduação em Geografia
(2015-07) Severino, Maico Roris; Barbosa, Janete Costa Ribeiro; Ribeiro, Marina Pires
The Solidarity Economy experiences have grown exponentially in Brazil since the start of the 21st century. To that extent, the various areas of knowledge have been developing studies to better understand this phenomenon, among them, Geography. The purpose of this paper is, therefore, to perform a quantitative and qualitative analysis of graduate programs productions (theses and dissertations) on geography and the solidarity economy topic. Hence, a literature review was conducted in order to gather all theses and dissertations up to the year of 2014, that addressed the topic. It was perceived that the geography research on the topic is still limited and regionally concentrated, but on the other hand, the studies analyzed show interesting analysis and broad scopes. The main contribution of this paper is the diagnosis of how the solidarity economy theme has been studied in geography, as well as to point out other research opportunities.
Guidelines to devise a multimodal freight transportation network in developing regions under economic growth approach
(2014-12) Almeida, Cristiano Farias; Gularte, Juliana Gomes; Yamashita, Yaeko
In Brazil, especially at the Amazon Region, the relationship between transport and economic development has been studied since 70s with elaboration of several plans. However, due to many factors, such as the incompatibility between the proposed models of transport planning and territorial planning, the expected results were not reached. Under these aspects, the goal of this paper is to define guidelines in order to devise a multimodal freight transportation network that allows efficient transport of products in a developing region. This network was developed using natural resources and it stimulates the economic growth and development based on the Growth and Development Poles Theory and Graphs Theory. As result three networks related to three different scenarios – status quo, investment in transport infrastructure by the governmental programs, and the strategy scenario – have been elaborated and analyzed considering the operational transport costs and their spatial configuration.
Identification of development poles on Brazilian Amazon region and analysis of the geographic accessibility
(2020-10) Santos, Alex Mota dos; Almeida, Cristiano Farias; Soares, Daniel de Oliveira; Silva, Carlos Fabricio Assunção da
Identification of development poles within the regional planning is important for defining the nodes of a given transport network and plays the role of driving economic growth in a region. Nevertheless, such proceedings are complex, especially in some areas where there is a lack of data that could support studies of this nature, for example in the case of the Amazon region. Thus, this study aims to identify development poles using spatial analysis of production values of soya, coffee, wood, and mineral products like cassiterite, aluminum ore, iron ore and copper. In addition, the geographic accessibility analysis was carried out at these poles in order to identify the potential of the transport network to be structured. Results demonstrated that it is possible to build a dense transport network by identifying more development poles, which would increase the connectivity, allowing more intense exchange of flows and development of the region.
Exploring the relationship between transportation infrastructure and regional economic growth using Losch’s location theory
(2021-05-14) Almeida, Cristiano Farias; Silva, Francisco Gildemir Ferreira da; Araujo, Paulo Henrique Cirino
There are some knowledge gaps regarding the relationship between transportation infrastructure and economic development, especially about economic impacts that occur due to implementation of infrastructure in a given region, albeit various studies have addressed the issue. This paper aims to identify variables that affect economic development in order to contribute to the development of a theoretical model that could explain the relationship between transportation infrastructure and economic development. The theoretical model is satisfactory because it begins by analyzing the actions generated by the transportation infrastructure. Moreover, the model is based on the Location Theory considering the economic development and taking into account variables such as transportation costs, gain, product value, consumption, competition between companies and lastly monopoly. Finally, an econometric procedure, Spatial Panel Auto Regressive Vector Model (PVAR), was used to evaluate the relationship between economic development and investments in transportation infrastructure.

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