Railway Operation
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Dynamic Response Analysis of Geogrid Reinforced Embankment Supported by CFG Pile Structure During a High-Speed Train Operation
Abstract The performance of railroad structure has a tremendous influence on the safety and stable operation of high-speed trains. Strong vibrations and the degradation rate of the track are the main factors affecting the transport safety of a railroad built over a weak soil. Geogrid reinforced embankment supported by pile structure is a new efficient constr
Lat. Am. j. solids struct.. Publicado em: 15/08/2019
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2. The primacy of the Port of Santos on the national port scenery on the contemporary time. Logistics, territorial and management determinants / A primazia do Porto de Santos no cenário portuário nacional no período contemporâneo. Determinantes logísticos, territoriais e de gestão.
This work analyze the commercial and international port system flows, applied on the national scene and focused on the Porto of Santos. The Port structure of Baixada Santista is studied on three successive periods, Port of Coffee, Industrial Port and Flexible Port. The first one started through the operation of the railway access in 1865, the second one thro
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/05/2012
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3. Avaliação da composição isotópica do chumbo e da distribuição elementar nos sedimentos da represa Pedro Beicht, Cotia, São Paulo / Evaluation of isotopic composition of lead and elemental distribution in the sediments of the Pedro Beicht reservoir, Cotia, São Paulo
The water reservoir named Pedro Beicht provides water to five hundred thousand people in the metropolitan region of São Paulo city and is known by its excellent aquatic system quality. It is managed by Sanitation Company of São Paulo State (SABESP) and is surrounded by the Forest Reserve Morro Grande (RFMG). The RFMG was created in 1979 to ensure flora and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/06/2011
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4. Aplicação do método de análise de risco ao estudo do descarrilamento. / Aplication of risk analysis method to the derailment study.
This research proposes a risk analysis method applied to derailment event (characterized by the wheel overlap on the rail, which can be caused by many aspects: rail imperfections, rolling stock failures, obstacles etc and which can cause accidents, material and life loss) to increase the safety level on railway transport that actually does not present decrea
Publicado em: 2011
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5. SOLUÇÕES DE OTIMIZAÇÃO DA EFICIÊNCIA ENERGÉTICA DE UMA FERROVIA DE CARGA: O CASO DA ESTRADA DE FERRO CARAJÁS / SOLUTIONS OF OPTIMIZATION OF THE ENERGY EFFICIENCY OF A RAILROAD OF LOAD: THE CASE OF ESTRADA DE FERRO CARAJÁS
The energy efficiency represents the oil consumption diesel of the locomotives multiplied by the load carried and the distance from one determined stretch. This is a subject little searched in the practical railroad, however is a subject of extreme importance. To improve the energy efficiency, actions can be taken in some levels: operational, technological,
Publicado em: 2009
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6. Avaliação da Tenacidade à Fratura e da Resistência à Fadiga de Dois Aços Utilizados em Eixos de Carros Torpedos
Fatigue and fracture of railway shafts are technical problems that have been treated in studies of mechanical behavior of materials. The pugh car shafts fracture during operation causes production losses and high cost to replace them. In this work, it has been studied the fracture toughness through CTOD parameter and the fatigue crack growth da / dNxΔK
Publicado em: 2008
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7. Decision making strategies for real time trains movement planning / Estrategias de decisão para o planejamento de circulação de trens em tempo real
Railways plays a major role in freight and passenger transportation in the whole world. The Brazilian railway system has suffered a process of abandon and deterioration from 1960 to 1990. Since 1990 the privatization of the national railways brought new investments and in the last years the demand for railway transportation has increased significantly. Railw
Publicado em: 2007
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8. The Brazilian railroads and the recent expansion to the Center-West Region of Brazil / As ferrovias brasileiras e a expansão recente para o centro-oeste
This research is intended to investigate and discuss the expansion of the transportation projects in the Center-West Region of Brazil and its relation with the process of agricultural expansion. The research was made through consultations to specialized magazines, and texts on economic research. Brazil shows serious problems of infrastructure, that harms its
Publicado em: 2007
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9. Análise da oferta de operadores de transporte multimodal de cargas no Brasil: uma aplicação da teoria dos custos de transação.
The Multimodal Cargo Transportation is the achievement of operational transportation by only one operator, known as Multimodal Transport Operator MTO. The MTO is responsible for the loading over the itinerary from the origin to final destination, in this case, using only one transportation document. Thus, the transport operation is characterized as a hierarc
Publicado em: 2007
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10. Diretrizes para gestÃo ambiental de um empreendimento metro-ferroviÃrio: estudo de caso: Metrà do Recife
Due to its particularities, the undertaking of the urban railway transportation systems present in its set of characteristics (extension of the tracks, number of stations, integrated terminals, construction time, number of parties involved, etc) the need for a profound study in order to understand it in its all dimension. It has become all the more evident w
Publicado em: 2005
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11. DECISION SUPPORT SYSTEM FOR THE OPERATIONAL CONTROL CENTER IN THE RAILROAD TRAFFIC MANAGEMENT / SISTEMA DE APOIO À DECISÃO AO CENTRO DE CONTROLE OPERACIONAL NO GERENCIAMENTO DO TRÁFEGO FERROVIÁRIO
Esta pesquisa tem por objetivo conceber um sistema de apoio à decisão ao centro de controle operacional no gerenciamento do tráfego ferroviário. O sistema consiste na resolução de conflitos entre trens. Esta pesquisa justifica- se devido à deficiência encontrada pelos controladores de tráfego na tomada de decisões. Atualmente, as prioridades dos tr
Publicado em: 2004
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12. Comparação de desempenho dos sistemas de freio de atrito tipo sapatilha-disco e sapata-roda para veiculos ferroviarios de carga
The objective of this work was to obtain and compare the parameters of the railway friction brakes, both shoe-wheel and pad-disk types, verifying the technical possibility of the pad-disc system to be used in replacement to the conventional shoe-wheel system for freight vehicles, maintaining the safe conditions to components integrity. The conditions were ex
Publicado em: 2003