The paper addresses the issue of defining policies in specific engineering terms and demonstrates the impact of alternative approaches to the development of these policies. Life cycle costing and cost-benefit techniques are used extensively in the process, which is discussed in detail and demonstrated with the help of a practical example. There are a number of ways to achieve the set targets and the choice of strategies is a function of several factors beside availability of technologies and materials. The paper demonstrates the modelling of various strategies and their purposeful use to achieve short and long-term targets. By modelling engineering judgement and rational network level economics, strategic decisions can be justified and supported. The paper demonstrates the development of policies and strategies by using data from Transport SA. Pavement performance data has been collected for almost a decade and the analysis of this data contributed significantly to the understanding of the network and to the development of the methods discussed and demonstrated in the paper. (Author/publisher) For the covering entry of this conference, please see ITRD abstract no. E208431.
Samenvatting