Pavement deterioration models help in predicting the condition of the pavement at a future date. These model forms an important input in a pavement management system for assessing the state of health of pavements and selecting the optimal maintenance and rehabilitation strategies. The World Bank developed tool HDM-4 (Highway Development and Management Model) are used for pavement management activities and must be adjusted to the specific conditions of the country or region where they are to be used by adjusting certain calibration factors. In this study, an attempt have been made to calibrate HDM-4 pavement deterioration models for paved Low Volume Roads (LVR) in India by using the "window" monitoring techniques which consists of reconstructing the distress performance curve of a specific road category starting with observation of the condition of different roads with similar characteristics but of different ages. Pavement condition data of 61 identified in service LVR sections are collected for 2 years period for model calibration and calibrated pavement deterioration models are validated for different LVR sections. The result of the study will be useful input for deciding the optimal maintenance strategies (type and timing) for LVR in India.
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