The performance of a railway track structure is significantly influenced by ballast shape properties such as roundness, flatness, elongation, sphericity, angularity and surface texture. Railway ballast materials have to ...

Train speeds and heavy haul axle loads are constantly increasing the forces and stresses experienced by track structures. This is especially true for track transitions that generate high dynamic forces on both the track ...

The view of the author presented in this dissertation is that the integration of modern railway technologies and information technology systems establishes effective maintenance management and ensures continuous asset ...

At first glance the operational performance of ballast appears trivial in its simplicity. However, various mechanisms affect the short and long term performance of the ballast and in turn, the response of the track structure, ...

Continuous, effective condition monitoring and measurement of railway infrastructure remains a cornerstone of effective maintenance practices. Nonetheless, the potential benefits associated with the rapid advancements in ...

Railway wheel squeal is an unresolved noise challenge facing the railway industry. Of all the noise sources originating from railways, tonal curve squeal is one of the loudest and most disturbing. Wheel squeal results from ...

Changing climatic conditions worldwide are causing a change in moisture conditions of railway formations and slopes, thereby either strengthening or weakening them. Current railway formation design methods do not take ...

Laboratory tests on ballast give insight into the behaviour and performance of the ballast layer under passenger and heavy haul traffic. It is important, however, to ensure that the simulation of train loads on the ballast ...