Análise da trafegabilidade em estradas florestais utilizando métodos computacionais

Oliveira, Robson José de; Gleriani, José Marinaldo; Machado, Carlos Cardoso; Pereira, Reginaldo Sérgio; Cordeiro, Sidney Araujo

doi:10.1590/s0100-67622013000200017

Cited by 3 publications

(5 citation statements)

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“…Due to the similarities between rural roads and forest roads (Machado, 2013), mainly evidenced by having no type of coating in their respective bearing areas and because they are subjected to common deterioration mechanisms, the proposed method is applicable to the management of forest roads, and therefore represents a good and practical decisionmaking tool to ensure, over the expected service time, the appropriate functional performance of unpaved roads subjected to traffic of vehicles typical of forest exploitation undertakings.…”

Section: Discussionmentioning

confidence: 99%

“…According to Machado (2013), investments allocated to the infrastructure of these roads allow to increase productivity levels, and provide social benefits to communities by providing access to markets, services, jobs and information. The author highlights that improvement programs of forest roads reduces the costs of transportation and agricultural products, increasing the competitiveness of agricultural production, but also improving the quality of life of the surrounding communities.…”

Section: Introductionmentioning

confidence: 99%

“…In order to minimize costs and traffic disruptions, Oliveira et al (2013) present a method used to subsidize the generation of a database to test the efficiency of the use of artificial neural networks in the management of forest roads, through the identification and measurement of the main defects of these roads. Pinto (2009) proposes the use of "Relational Unified Process" tool in guiding the management of unpaved forest roads, which encompasses policy suggestions and alternative maintenance measures, with decision trees proposals to select these interventions according to the severity and extent of the defects identified in the field.…”

Section: Introductionmentioning

confidence: 99%

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Modeling a Computer Application for Management of Maintenance Activities of Unpaved Roads

et al. 2015

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-This study presents a contribution to the modeling of a computer application employing a method of serviceability performance for unpaved roads, aiming the management of maintenance/restoration activities of the primary surface layer. The proposed methodology consisted of field inspections during dry (April to September) and rainy (October to March) periods, during which objective evaluations were performed to survey of defects and their densities and degrees of severity. To aid the functional classification of analyzed road sections and the determination of the defect with major influence on the serviceability of these roads, the method of serviceability performance proposed by Silva (2009)was implemented in the Visual Basic for Applications (VBA) language in Microsoft Excel software. With the use of the computer application proposed it was possible to identify among the defects analyzed in field, through the index of serviceability of the sampling unit per defect type (ISU def ), which one had the greatest influence on determining the relative serviceability index per road section (IST). The results allow us to conclude that the computer application Road achieved satisfactory results, since the objective evaluation criteria applied to road sections denotes consistency regarding their serviceability.Keywords: Primary surface course; Maintenance management system; Performance model. MODELAGEM DE UM APLICATIVO COMPUTACIONAL VISANDO AO GERENCIAMENTO DE ATIVIDADES DE MANUTENÇÃO DE ESTRADAS NÃO PAVIMENTADAS

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modeling a Computer Application for Management of Maintenance Activities of Unpaved Roads

et al. 2015

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“…As estradas com padrões inferiores refletem na utilização dos veículos extrapesados com elevados custos de manutenção da frota e sazonalidade de operações (MALINOVSKI & PERDONCINI, 1990). Para a região de Minas Gerais os principais defeitos das estradas eram quanto a secção transversal inadequada e drenagem lateral imprópria, originado 67,5% de estradas com algum tipo de não conformidades (OLIVEIRA et al 2013a;OLIVEIRA et al 2013b).…”

Section: Rede Viária Florestalunclassified

O Transporte Rodoviário Florestal

Guimarães¹,

Arce²,

Fiedler³

et al. 2016

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RESUMOO principal meio de transporte utilizado para o escoamento da produção florestal é o modal rodoviário. Desta forma, este artigo objetiva apresentar o estado da arte relativo ao transporte rodoviário florestal abrangendo legislação pertinente -as normas de trânsito para o transporte florestal estão descritas no Código de Nacional de Trânsito, os veículos podem transitar sem a necessidade de Autorização Especial de Trânsito (AET) transportando até 45 t, se, por acaso for de 57 a 74 t, somente transita com AET; considerações sobre os veículos de transporte -normalmente veículos pesados e extra-pesados possuem diferentes combinações veiculares de carga (CVC), que representam menores custos por unidade de carga por transportarem maior quantidade de carga; rede viária florestal -grande parte da malha viária brasileira ainda precisa de melhor pavimentação quando comparado a outros países, sendo as estradas utilizadas além do transporte propriamente dito, como também forma de acesso e proteção florestal. PALAVRAS-CHAVE: Estradas florestais, Gestão do abastecimento florestal, operações florestais. FOREST ROAD TRANSPORTATION ABSTRACTThe main means of transport to flow the forest products is the road transport. this paper aims to present the state of the art for the forestry road transport covering relevant legislation -traffic regulations for forest transport are described in the National Traffic Code, such vehicles can move without the need for special authorization Transit (AET) carrying up to 45 t, if by chance is 57-74 t, only transits with AET; considerations on transport vehicles -usually extra-heavy and heavy vehicles have different vehicular load combination (CVC), representing lower costs per unit load by carrying greater amount of load; forest road -much of the Brazilian road still needs better paving when compared to other countries, and the roads used in addition to the transportation itself, as well as access and forest protection.

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“…According to Oliveira et al (2013), the forest transportation corresponds to all wood movement from the stands where are the forests or the edges of roads to the courtyards of companies, and despite the shortcomings of the routes on which runs this mode of transport, they are responsible for connection between the producing communities and the large paved roads or between forest companies and the wood processing industries. Lopes et al (2002) highlight that the road sector is of great importance in the forest enterprise, since the road-transportation binomial costs significantly affect the final value of the timber.…”

Section: Introductionmentioning

confidence: 99%

MCT Classification for Compacted Mixtures of Soil-Steel Slag-Fly Ash for Application in Forest Roads

et al. 2016

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-This work aimed to evaluate the potential application of a stabilizer derived from the intimate mixture of powder electric arc furnace oxidizing slag and fly ash, aiming at the improvement of soil engineering properties for enforcement purposes on forest roads. This evaluation was undertaken by means of an experimental program of laboratory tests to classify soils and mixtures of these with the proposed stabilizer according to the MCT (Miniature, Compacted, Tropical) methodology. The proportions of waste mixtures were 10% and 20% of the total dry mass of soil-waste combinations and percentages of ground steel slag were 75%, 87.5% and 100% relative to total dry mass of waste mixtures. It was shown the potential to technically enable the use of steel waste in the composition of forest roads, emphasizing the relevance of the proposal in meeting the need of steel companies to confer a sustainable destination for the waste and the need of forest companies to meet, with low-cost materials, the significant demands of their unpaved road network.Keywords: Soil stabilization; Steel waste; Forest transportation. CLASSIFICAÇÃO MCT DE MISTURAS DE SOLO-ESCÓRIA DE ACIARIA-CINZA VOLANTE COMPACTADAS VISANDO A APLICAÇÃO EM ESTRADAS FLORESTAISRESUMO -Este trabalho visou avaliar o potencial de aplicação técnica de um estabilizante resultante da mistura íntima de pó de escória oxidante de aciaria elétrica moída e cinza volante, visando à melhoria das propriedades de engenharia de solos para fins de aplicação em estradas florestais. Essa avaliação foi empreendida por meio de um programa experimental de ensaios laboratoriais destinados a classificar os solos e as misturas destes com o estabilizante proposto segundo a metodologia MCT (Miniatura, Compactado, Tropical). As proporções das misturas dos resíduos foram de 10% e 20% da massa seca total das combinações solo-resíduos, e as porcentagens de escória de aciaria moída foram de 75%, 87,5% e 100% em relação à massa seca total das misturas dos resíduos. Para as particularidades da pesquisa e por meio da classificação MCT, foi possível demonstrar o potencial de viabilizar tecnicamente o aproveitamento de resíduos siderúrgicos na composição das vias de tráfego florestais, realçando a relevância da proposta no atendimento à necessidade de empresas siderúrgicas de conferirem uma destinação sustentável de seus resíduos e à necessidade das empresas florestais de suprirem, com materiais de baixo custo, as significativas demandas de sua malha viária não pavimentada.Palavras-chave: Estabilização de solos; Resíduos siderúrgicos; Transporte florestal. 912Revista Árvore, Viçosa-MG, v.40, n.5, p.911-919, 2016 PITANGA, H.N. et al.

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Análise da trafegabilidade em estradas florestais utilizando métodos computacionais

Cited by 3 publications

References 2 publications

Modeling a Computer Application for Management of Maintenance Activities of Unpaved Roads

Modeling a Computer Application for Management of Maintenance Activities of Unpaved Roads

O Transporte Rodoviário Florestal

MCT Classification for Compacted Mixtures of Soil-Steel Slag-Fly Ash for Application in Forest Roads

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