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Program Research: R3

R3.112 - Track Stability Analysis

Background:

The stability of track, as influenced by changes in rail temperature, is a significant safety risk and business risk to Australian railways. Hence, an accurate prediction and/or correct measurement of rail surface temperature based on meteorological conditions are essential for track stability analysis and safety management.

Objective:

This study aims to develop a thermodynamic model for predicting rail surface temperature and correct stability analysis.

Project scope:

The project will focus on three areas as follows:

  • Mathematical modelling to predict incident radiation
  • Prediction modelling for rail temperature
  • Managing risks and speed restriction settings

Benefits

Key benefits of the work are:

  • Increased knowledge and mathematical modelling to aid in management of rail stability.
  • Improved methodology for speed restriction setting when required to reduce track buckling risk.

The rail authorities with large track networks such as QR and ARTC will benefit from the outcomes of the project. The project will also benefit railway customers with less speed restrictions required for track stability management - improving transit times.

Expected outcomes:

Followings are the expected outcomes of the project:

  • Comparisons of current standards used by rail authorities for track stability analysis and identifications of gap in existing codes and practices,
  • Cause-effect analysis of track buckling,
  • Prediction and modelling of rail temperature from incident solar radiation and others,
  • Finalisation of scopes and objectives of stage #2.

Project timeframe:

24 Months

Project Chair:

Mr John Powell, QR

Project Leader:

Nirmal Mandal, Central Queensland University

Tel: (07) 4923 2064

Email: n.mandal@cqu.edu.au

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