15-10-2014, 03:18 PM
Sanctioned by the Department of Science and Technology (DST), Government of India. The research project was started in July 2003 and was completed in June 2007. This research project has dealt the maintenance management aspect of rural roads. The experimental matrix has been designed for categorizing the rural road sections into nine cells and variables considered for defining experimental matrix are as: terrain types, climatic condition types, traffic variations and age of the rural road since its construction or latest rehabilitations. The type and extent of distresses (i.e. cracking, raveling, rutting and pothole and edge break area) have been measured by visual condition survey for all selected test sections, during winter, pre-monsoon and after monsoon season in the years 2004, 2005 and 2006. Present Serviceability Index (PSI) has been calculated for each selected rural road section. Parameter estimations for different form of models were carried out by carrying out regression analysis and taking ‘PSI’ as dependent variable and the ‘pavement age’ as an independent variable. Present Condition Index (PCI), an index reflecting the composite effects of varying distress types, severity level, and extent upon the overall condition of pavement has been calculated for each rural road section in all cell categories. The pavement deterioration models, i.e., initiation and progression of total cracking, raveling, potholing and progression of edge break, rut depth and roughness as incorporated in World Bank developed “Highway Development and Management Tool (HDM-4)” have been calibrated for local conditions of rural roads in plain, rolling and mountainous terrains of India.
Outlay: Rs. 16.30 Lac