Evaluation of maintenance activities in terms of Chile’s road infrastructure asset value

The aim of this paper is to propose a methodology to evaluate the cost-effectiveness of maintenance plans applied along a multiyear lapse over a network, in terms of the network�s asset value that is obtained at the end of the evaluation period. As an application of such methodology, the 1.3 version of the HDM4 model, calibrated to local conditions, was used to evaluate the performance of the complete network of national public roads in Chile, using a set of characteristic road sections over a 20-year time span. Relationships very close to linear were found between final asset value after 20 years, and the corresponding investment amounts, both for the paved and unpaved sub-networks, and also for the whole network. The results also showed that very high levels of investment are necessary to obtain a small increase in asset value. (a) For the covering entry of this conference, please see ITRD abstract no. E212095.