Abstract: A new 'whole-life' pavement performance model (WLPPM) has been developed that is capable of making deterministic pavement damage predictions due to realistic traffic and environmentailoading. The WLPPM is divided into three central areas: (i) dynamic vehicle simulation, (ii) pavement primary response (stresses, strains etc.) simulation, and (ill) material damage (surface rutting and fatigue) simulation. Particular attention is given to modelling strength variations in the pavement and the pattern of dynamic tyre forces applied by a typical vehicle· fleet The model is used to investigate the relationship between 'hot spots' (due to peak dynamic loads), 'weak spots' (due to initial pavement stiffness variations) and long term pavement wear. It is concluded that both dynamic vehicle loads and asphalt layer stiffness variations can significantly influence long-term flexible pavement performance.
Publication Year: 1995
Publication Date: 1995-01-01
Language: en
Type: article
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Cited By Count: 7
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