Pavement condition modelling by using surface condition data - A VicRoads study

With the tightening maintenance budget, ageing assets and increasing traffic volumes and community expectation, it is becoming crucial for the road authority to understand the assets performance and make investment decisions to maximise benefits to the community. In VicRoads, the pavement maintenance program is mainly focused to address surface defects to ensure waterproofing of the pavement to provide a safe environment for road users. A study was carried out to develop pavement deterioration models using the visual surface inspection rating (SIR) data collected since 2005. Probabilistic approaches are applied to predict future network condition and assist in long term planning. dTims is used to set up the pavement network model to analyse the performance of the network condition under different budget scenarios to assist the decision-making of budget allocation