Results 21 to 30 of about 18,599 (263)
Multi‐state unified calculation model of rail potential and stray current in DC railway systems
IET Electrical Systems in Transportation, 2023 In order to calculate the dynamic distribution of rail potential and stray current accurately, a multi‐state unified calculation model of rail potential and stray current is proposed, and the characteristics of different protection devices and reflux ...
Guifu Du +7 more
doaj +1 more source
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
openaire +2 more sources
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
doaj +1 more source
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.
openaire +2 more sources
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
doaj +1 more source
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
doaj +1 more source
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
openaire +1 more source
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
Top-of-Rail Lubricants: Potential Risks and Benefits [PDF]
i-RISE 2018, 2018 Top-of-rail (TOR) lubricants represent modern approach for friction modification between wheel and rail. The main goal of this study was to investigate potential risks and benefits associated with the application of these products, especially in terms of adhesion, wear, and noise. For this purpose, both laboratory and field experiments were carried out.
Radovan Galas +2 more
openaire +3 more sources
Uncovering the Real Potential for Air–Rail Substitution: An Exploratory Analysis [PDF]
, 2012 While air to rail substitution is much discussed, in the literature and in the policy debate, there has still been no attempt to quantify the potential for such mode substitution in order to examine the extent to which High Speed Train (HST) might address the main problems faced by the air transport industry: the capacity shortage on the one hand and ...
Givoni, Moshe +2 more
openaire +3 more sources