On September 20, 1988 a random survey of 298 goods vehicles (over 3.5 tonnes maximum permitted (plated) gross vehicle weight) was selected from the northbound carriageway of the A74 near Carlisle. During this survey, each vehicle was weighed and measured. This report summarises the data collected and assesses the extent and effects of overloading. During the survey, it was found that 7.7% of the vehicles had gross weights greater than the maximum permitted and a further 13.8% did not exceed the gross weight limits but had overloaded axles, bogies, tractors, or trailers. Although overloaded vehicles contributed 42% of road wear, the removal or redistribution of the excess weight would only have reduced this by some 4.1%.

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