A whole life cycle approach under uncertainty for economically justifiable ballasted railway track maintenance
نویسندگان
چکیده
منابع مشابه
Investigation of the Influences of Track Superstructure Parameters on Ballasted Railway Track Design
The main design criteria of ballasted railway tracks include rail deflections, rail bending stresses, rail wheel contact stresses, sleeper bending moments and ballast sleeper contact pressures. Numerous criteria have been defined for the design of ballasted railway tracks owing to the various mechanical properties of track components and their complex interaction. Therefore, railway track desig...
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Travelling safely and comfortably on high speed railway lines requires excellent conditions of the whole railway infrastructure in general and of the railway track geometry in particular. The maintenance process required to achieve such excellent conditions is largely complex and expensive, demanding an increased amount of both human and technical resources. In this framework, an optimal schedu...
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The last few years have seen significant improvements in the concepts, methods and general approach to calculating costs. ABC, Target Costing, Strategic Cost Management, functional analysis and costing are mobilising attention. Regardless of which of these approaches we consider, it is always from the point of view of one player whose intention is to benefit from increased knowledge of costs in...
متن کاملDevelopment of Viscoelastic Multi-Body Simulation and Impact Response Analysis of a Ballasted Railway Track under Cyclic Loading
Simulation of a large number of deformable bodies is often difficult because complex high-level modeling is required to address both multi-body contact and viscoelastic deformation. This necessitates the combined use of a discrete element method (DEM) and a finite element method (FEM). In this study, a quadruple discrete element method (QDEM) was developed for dynamic analysis of viscoelastic m...
متن کاملinvestigation of the influences of track superstructure parameters on ballasted railway track design
the main design criteria of ballasted railway tracks include rail deflections, rail bending stresses, rail wheel contact stresses, sleeper bending moments and ballast sleeper contact pressures. numerous criteria have been defined for the design of ballasted railway tracks owing to the various mechanical properties of track components and their complex interaction. therefore, railway track desig...
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ژورنال
عنوان ژورنال: Research in Transportation Economics
سال: 2020
ISSN: 0739-8859
DOI: 10.1016/j.retrec.2020.100815