Results 31 to 40 of about 1,535,367 (276)
Influence of Track Stiffness on Track Behaviour under Vertical Load
Promet (Zagreb), 2012 The analysis of track behaviour under vertical load is traditionally based on the presumption that the stresses and deformations in track elements can be determined by the application of the Winkler’s Hypothesis.
Leposava Puzavac +2 more
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Civil and Environmental Engineering, 2016 The paper deals with the partial results of diagnostics of experimental sections of ballastless track Rheda 2000® and transition areas between ballastless and ballasted track structure around portals of tunnel Turecky vrch after six measurement cycles ...
Šmalo Michal
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Statistical estimation and forecast of seasonal variations in measured track geometry
Nihon Kikai Gakkai ronbunshu, 2019 This paper describes a method for statistically estimating five components included in the time series of vertical track geometry measured at the same point on a railway track.
Masako KAMIYAMA +3 more
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Frontiers in Built Environment, 2020 When planning a new track or improving a track that is currently in-service, it is important to predict the probable rate of track deterioration as a function of the variables related to the train and its periodicity.
Andre L. O. de Melo +4 more
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Visual Measurement System for Wheel–Rail Lateral Position Evaluation
Sensors, 2021 Railway infrastructure must meet safety requirements concerning its construction and operation. Track geometry monitoring is one of the most important activities in maintaining the steady technical conditions of rail infrastructure.
Viktor Skrickij +5 more
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Quality Behaviour of Turnouts: Comparison, Problem Specification and Recommendation of Measures
Applied Sciences, 2023 For future requirements, asset management of turnouts needs to rely on data-based assessment tools. These tools must enable the quantification of quality behaviour of turnouts and identify causes of poor behaviour.
Markus Loidolt +5 more
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Modeling the track geometry variability [PDF]
, 2012 International audienceAt its building, the theoretical new railway line is supposed to be made of perfect straight lines and curves. This track geometry is however gradually damaged and regularly subjected to maintenance operations. The analysis of these
Duhamel, Denis +3 more
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Tire track geometry: Variations on a theme [PDF]
Israel Journal of Mathematics, 2006 We study closed smooth convex plane curves $Γ$ enjoying the following property: a pair of points $x,y$ can traverse $Γ$ so that the distances between $x$ and $y$ along the curve and in the ambient plane do not change; such curves are called {\it bicycle curves}.
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Optimal geometry for oval sprint tracks
Journal of Biomechanics, 1990 Track aspect ratio is defined as the percentage of lap length devoted to turns on an oval running track. Equations based on experiments are developed to model a composite runner with a specified top speed, during an acceleration phase in the straightaways and a centripetal phase in the turns.
P R, Greene, M A, Monheit
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Track Geometry for Light Rail Systems
Transportation Research Record: Journal of the Transportation Research Board, 2010 Light rail systems are characterized by running over the streets, with semiexclusive (or reserved) right-of-way. This factor leads to the necessity of adapting the track geometry to that existing in the streets. This adaptation sometimes leads to great challenges: strong vertical grades, horizontal circular curves with small radius without ...
Novales, Margarita +2 more
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