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Short Pitch Irregularities

Pitch IrregularitiesProject Manager:

Dr Yan Quan Sun

Sponsor Organisations:

Staff Members:

Objectives

The project is to develop enhanced measurement analysis systems and standard methods for analysing short-pitch track and crossing irregularities as well as to establish methods of assessment and systems for prioritising maintenance.

Background

In the modern railway track system, several types of short-pitch irregularity unavoidably exist which cause large magnitude wheel-rail impacts with quite high frequencies. As railway operators increase axle loads and operation speeds, quantifying and monitoring track and crossing deterioration due to impacts caused by short-pitch irregularities has become a major priority.

Outcomes

Development of an analysis system for quantifying and presenting measurement data for short-pitch irregularities in track and at crossings.

Development of standard methods of assessing short-pitch track and crossing defects, as well as methods of prioritising maintenance.

It is expected that benefits will be realised by improved timeliness of maintenance.