Results 21 to 30 of about 28,033 (310)
Evaluation of the potential improvements in freight rail transport: the case of a Swedish rail company [PDF]
WIT Transactions on The Built Environment, 2014 Although rail transport is considered as energy efficient and environmental friendly mode of transport there are many hindrances towards increased use of rail for freight transport. The two main hindrances identified in Sweden are priority of passenger over freight rail transport and the fact that rail network has almost reached its capacity. Therefore
Roso, Violeta +3 more
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A logistical perspective on the potential for modal shift of freight from road to rail in Great Britain [PDF]
, 2003 Freight modal shift from road to rail is a potential means by which the negative environmental and social impacts of transport can be reduced. This paper explores recent supply chain changes and assesses their impacts on the mode choice decision-making ...
Woodburn, A.G.
core +1 more source
An initial investigation on the potential applicability of Acoustic Emission to rail track fault detection. [PDF]
, 2004 In light of recent accidents in the rail industry, the assessment of the mechanical integrity of rail-track is of vital importance. This encompasses the integrity of the track due to rolling contact fatigue and surface wear. Whilst numerous techniques
Mba, David, Bruzelius, Kristoffer
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Maximum Safety Regenerative Power Tracking for DC Traction Power Systems
Energies, 2017 Direct current (DC) traction power systems are widely used in metro transport systems, with running rails usually being used as return conductors. When traction current flows through the running rails, a potential voltage known as “rail potential” is ...
Guifu Du +6 more
doaj +1 more source
Minimizing Cost Overrun in Rail Projects through 5D-BIM: A Systematic Literature Review
Infrastructures, 2023 Mega projects delivering rail infrastructure are constantly seeking cost-effective and efficient technologies to sustain the growing population. Building information modeling (BIM) and BIM for cost management (5D-BIM) have shown great potential in the ...
Osama A. I. Hussain +3 more
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Study on a Heuristic Wheelset Structure without Rail Corrugation on Sharply Curved Tracks
Shock and Vibration, 2021 Rail corrugation on low rails of sharp railway curves is still a difficult problem to solve worldwide. Nearly all low rails of the sharp railway curves incur rail corrugation. In the present study, an active method to remedy rail corrugation was studied.
G. M. Mei +3 more
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Medicaid as a Potential New Third Rail of US Politics
JAMA Health Forum, 2022 This JAMA Forum discusses upcoming debt ceiling debates in the US Congress and potential cuts to entitlement programs within the context of the current wider reach of Medicaid than Medicare, Medicaid expansion under the Affordable Care Act, and the possible end to the COVID-19 public health emergency and a recession.
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Вестник Научно-исследовательского института железнодорожного транспорта, 2022 Introduction. The purpose of the research is to evaluate transition resistance modifications of the upper structure track in passing from the ballast to the ballastless track. These modifications effect the rail-to-earth potential difference.
A. A. Krylov +4 more
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Potential for external reinforcement of insulated rail joints [PDF]
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2016 This paper aims to investigate the alternative ways of reducing the deterioration and failure of insulated rail joints of railway tracks. Joints deteriorate faster than rails due to the presence of structural discontinuity. This weakness results in extra displacement due to the applied load and dynamic force that results as a consequence.
M Gallou +4 more
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Impacts of Urban Rail Transit on On-Road Carbon Emissions: A Structural Equation Modeling Approach
Atmosphere, 2022 We examine the effects of urban rail transit on on-road carbon emissions in 90 Chinese cities, taking a structural equation modeling approach. Urban rail transit theoretically helps mitigate overall transport-sector emissions by absorbing part of the ...
Yifu Ou, Ji Zheng, Kyung-Min Nam
doaj +1 more source