Minimização Dos Custos De Transportes Rodoviário Florestal Com O Uso Da Programação Linear E Otimização Do Processo

Lacowicz, Pedro Giovani; Berger, Ricardo; Júnior, Romano Timofeiczyk; Silva, João Carlos Garzel Leodoro da

doi:10.5380/rf.v32i1.2350

Cited by 4 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Therefore, the modal value of the volume of wood (m 3 ) transported annually was 31,680.96 and 29,253.51 for LCC 1 and LCC 2, respectively. As the amount of transported wood increases, there is consequently an increase in gross revenue [39]. Thus, LCC 1 generated more revenue, resulting in a modal value of 352,093.89 USD year´1, while for LCC 2, this value was 313,498.11 USD year´1.…”

Section: Resultsmentioning

confidence: 99%

Multibody Dynamic Stress Simulation of Rigid-Flexible Shovel Crawler Shoes

Frimpong

Thiruvengadam

2016

Minerals

View full text Add to dashboard Cite

Abstract:The uncertainty in road transportation of wood is inherent to its operational costs, to the amount of transported wood, to the traveled distance, to its revenue, and more. Although it is not possible to measure this uncertainty fully, it can be quantified by the investment risk, which is the probability and degree of financial loss. The objective of this study is to quantify the financial risk of the investment in wood transportation through Monte Carlo simulation, which uses realistic situations to estimate the operational cost of vehicles used for road transportation of wood. We quantify these uncertainties by assessing financial risk and building pseudorandom scenarios with the Monte Carlo simulation method, in addition to the Net Present Value techniques, the Modified Internal Rate of Return, and the Profitability Index, all commonly used in financial investment projects. The results show that the estimated operational costs are equivalent to the actual ones, along with the evidence that the cost of fuel, the driver's manpower, and tires are components that mainly increase the degree of financial risk for an investment project in road transportation of wood. In contrast, optimizing the amount of transported wood and maximizing wood transportation cost have a significant and positive correlation with the volume of transported wood and the average price of wood transportation, leading to a reduction in the degree of financial risk.

show abstract

Section: Resultsmentioning

confidence: 99%

Multibody Dynamic Stress Simulation of Rigid-Flexible Shovel Crawler Shoes

Frimpong

Thiruvengadam

2016

Minerals

View full text Add to dashboard Cite

show abstract

“…This shows that there are opportunities for new studies aiming to improve current knowledge and optimize this activity. For instance, other techniques such as linear programming (LACOWICZ et al, 2002) and metaheuristics (HARIDASS et al, 2014) can be applied.…”

Section: Discussionmentioning

confidence: 99%

Influence of Wood Stacking Location on Forest Transport Costs

Fernandes

Matos

Magalhães

et al. 2019

View full text Add to dashboard Cite

Given the importance of forest transportation planning due to its high contribution in wood final cost, the distance between forest plantation stands and the wood final destination should be optimized in order to reduce process cost. The relation between distance and transportation cost is known, yet, it is still necessary to evaluate how much the location of the wood piles inside the stand interferes with its final cost. Thus, we try to evaluate the influence of the wood stacking location on forest transportation costs. The vectorization of the general map of a property located in Minas Gerais state was performed through the QGIS software, by representing the planting areas by polygons, internal and external access roads by lines, and the possible wood-stacking location to be transported by points. In each stand, four wood-stacking sites were considered, each on one side of the stand. Considering this, optimal route simulations were performed based on the criterion of the shortest distance between each pile of wood and a carbonization plant. The results showed a 32% reduction in the final cost of transportation when the wood is stacked in places closer to the carbonization plant. Therefore, the results evidence that the choice of the ideal stacking point, in the aspect of closer proximity to the destination of the wood transportation, can generate savings in this process.

show abstract

“…Partindo-se do pressuposto que o transporte rodoviário é uma das operações que mais gera custos em uma empresa florestal, deve-se buscar ainda um planejamento mais eficiente, através de técnicas de pesquisa operacional, visando a sua otimização e, como consequência, redução de custos, seja pela diminuição da frota (redução dos custos fixos) ou na alocação de veículos (redução do custo variável) (LACOWICZ et al, 2002).…”

Section: Gerenciamento De Riscosunclassified

Avaliação financeira e gerenciamento de risco para diferentes distâncias de transporte de madeira pelo modal rodoviário

2021

View full text Add to dashboard Cite

Entre os inúmeros elos da cadeia produtiva do setor florestal, o transporte apresenta-se como um componente relevante na gestão econômica das empresas, podendo representar mais de 30 % dos custos da madeira posto fábrica. Mediante a expressividade econômica e as incertezas relacionadas à atividade, objetivou-se com este trabalho proceder uma análise econômica e de risco no segmento de transporte florestal terceirizado. As receitas foram oriundas do valor pago pelo frete à empresa terceirizada, para os três raios de transporte analisados (US$/m³), bem como pelo volume de madeira transportado pelo biminhão (50 m³). Foi determinado o custo operacional por hora efetiva de trabalho, considerando os custos fixos, variáveis e administrativos. A pesquisa foi conduzida em uma empresa situada no litoral norte da Bahia, responsável pelo transporte terceirizado de madeira, das margens das estradas até a bateria de fornos, com uso do biminhão. A empresa detentora dos fornos pertence ao segmento de siderurgia e utiliza como fonte de matéria-prima madeira de eucalipto oriundo do próprio plantio. Foram avaliados três raios de transporte, sendo estes: 10 km, 14 km e 20 km. Adotaram-se os critérios VPL, TIR, VAE, RB/C e CMP para análise econômica, sendo VPL empregado ainda na simulação de cenários de risco da atividade. Os resultados mostraram viabilidade para todos os critérios analisados: US$ 5.657,58 (VPL); 8,23% (TIR); US$ 824,23 (VAE); 1,004 (RB/C) e US$ 2,24 (CMP), para o raio de transporte de 10 km; US$ 72.563,96 (VPL); 18,34% (TIR); US$ 10.571,55 (VAE); 1,05 (RB/C) e US$ 2,38 (CMP), para o raio de transporte de 14 km; US$ 251.807,75 (VPL); 27,3 % (TIR); US$ 36.684,85 (VAE); 1,15 (RB/C) e US$ 2,62 (CMP), para o raio de transporte de 20 km. Na análise de risco foi observado 49,0%, 30,9% e 7,4% de probabilidades dos valores de VPL apresentarem negativos, para os raios de transporte de 10, 14 e 20 km, respectivamente, considerando a distribuição triangular uniforme com 10.000 iterações. O trabalho mostrou maior cenário de risco para o raio de transporte de 10 e 14 km, sendo a variável de maior influência, o valor de aquisição do veículo. O maior raio de distância de transporte condicionou cenários de menores riscos e maior atratividade para a empresa terceirizada de transporte florestal.

show abstract

Minimização Dos Custos De Transportes Rodoviário Florestal Com O Uso Da Programação Linear E Otimização Do Processo

Cited by 4 publications

References 0 publications

Multibody Dynamic Stress Simulation of Rigid-Flexible Shovel Crawler Shoes

Multibody Dynamic Stress Simulation of Rigid-Flexible Shovel Crawler Shoes

Influence of Wood Stacking Location on Forest Transport Costs

Avaliação financeira e gerenciamento de risco para diferentes distâncias de transporte de madeira pelo modal rodoviário

Contact Info

Product

Resources

About