Title: DETERMINISTIC MODELLING OF LONG-TERM FLEXIBLE PAVEMENT PERFORMANCE
Abstract: This paper describes a deterministic model of long-term flexible pavement performance. The model includes the following features: vehicle dynamics, asphalt layer thickness variations, temperature variations, ageing, asphalt and lower layer permanent deformation and asphalt stiffness modulus degradation. The approach also includes feedback mechanisms to account for the effects of increasing roughness on dynamic tyre forces and the effects of asphalt stiffness modulus degradation on pavement damage. Using this type of approach it is possible to simulate the deterministic accumulation of damage as the pavement is progressively trafficked. This type of approach also allows the relative importance of vehicle-related factors (eg suspension type and configuration, tyre type etc) and pavement-related factors (eg initial surface roughness, layer tolerances etc) on long-term pavement performance to be investigated. For the covering abstract see ITRD E119486.
Publication Year: 2002
Publication Date: 2002-01-01
Language: en
Type: article
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