Abstract
Many road users suffer from back pain, fatigue, drowsiness and motion sickness. Such problems are often related to low frequency vibration. While vehicle suspension systems efficiently isolate vibration caused by road texture and short-wave roughness, they often amplify vibration at lower frequencies. Sources of these motions are large variance of cross fall and long-wave roughness; geometric road features longer/wider than vehicle body dimensions. Traditional 35 mm asphalt overlay only partially reduces such road damage, while repairing short-wave roughness efficiently. The most efficient method to reduce vehicle low frequency vibration is geometric large-scale repair of pavements. This paper presents a method for such road repair, using Computer Aided Design of the levelling course and milling works. Use of the CAD method offers an opportunity to – within the road managers' budget frame – optimize road repair to reduce human whole-body vibration in vehicles.
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