Abstract
In this paper, an asset management methodology of highway facilities, which are characterized by the multiple components of function- and structure-parts, is presented. The states of function-parts are described by the 0-1 variables designating whether the respective part is active or inactive, while those of the structure-parts are represented by the multiple rating index. In managing the multi-component facilities, the repair and rehabilitation policies of the structure parts as well as the synchronizing policies of the replace timing of functional- and structure-parts should be simultaneously investigated. In this paper the optimal synchronizing model is formulated to investigate the optimal repair and synchronizing repair policies of the respective parts and the optimal inspection and repair timing of the systems as a whole. The model presented in the paper is applied to the asset management of the anti-fire facilities on the expressways.
