Degradation of railway track on heavy haul lines

Hawari, Haitham M. & Murray, Martin H. (2008) Degradation of railway track on heavy haul lines. In Conference on Railway Engineering 2008, 7-10 September 2008, Perth, Australia.

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The geometric alignment of railway track deteriorates with time, primarily due to the static and dynamic forces exerted by the trains’ wheels on the track. Deterioration of the track’s geometry is called track roughness. The paper reports on the outcomes of a study of the deterioration of track roughness on three test sites in Queensland Australia; all three sites are heavy haul lines carrying trains with axle loads above 25 tonnes and more than 50 million gross tonnes of traffic per annum. An examination of measurements of track roughness by Track Recording Vehicles over a 5 year period showed that the rate of increase of track roughness grew with the passage of traffic – this is contrary to the commonly held view that the rate of increase of roughness diminishes with time. A method of presenting track geometry measurements from Track Recording Vehicles is provided which may assist maintenance planners to balance more easily the conflicting demands of reducing maintenance budgets while preserving a safe and serviceable track.

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ID Code: 15560
Item Type: Conference Paper
Refereed: Yes
Additional Information: Self-archiving is not yet supported by this publisher.
For more information, please refer to the conference's website (see hypertext link) or contact the author.
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Keywords: railway, track, degradation, roughness, heavy haul
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Transport Engineering (090507)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2008 Engineers Australia
Deposited On: 11 Nov 2008 00:00
Last Modified: 29 Feb 2012 13:42

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