Deterioration of Railway Track on Heavy Haul Lines

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 m 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.