Asset Management Systems for the Facilities on the Highways

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Abstract

This paper presents an asset management system (Fasys-AM) that is used to optimize maintenance/repair activities for highway facilities. The Fasys-AM can be used to estimate the optimal inspection/repair/replacement policies that minimize the life-cycle cost and failure risks using a database containing the inventories and inspection history. The system contains a simulation model in its core module that investigates the medium-long term budget plans and the service levels of the facilities given the budgetary constraints. The deterioration processes of the facility systems are modeled by the aggregated time-dependent Markov process model. In order to investigate the validity of the Fasys-AM system, a case study was conducted and is presented in the paper. The case study was carried out for the lighting system on the Tohoku expressway.

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