The Analysis of Life Cycle Cost and Maintenance Strategy in Transportation Facilities

It's an important issue for maintenance management in auxiliary facilities of transportation. Meanwhile, the maintenance budget always is the key factor to keep facilities' function. This research focuses on transportation facilities to explore its life cycle cost (LCC) and then provides administrators as a reference factor when they estimate maintenance budget. This research defines three maintenance strategies: reactive maintenance, preventive maintenance, and assessment maintenance. The database of this system includes basic data, inspection data, and maintenance data to provide the prediction base of life cycle cost. For reactive maintenance, because maintenance events are independent, this research uses Markov chain to predict the probability when any event occurs. According to the probability, the analysis system can estimate future maintenance cost. For preventive maintenance, it considers expendable products to analyze maintenance cost by considering its lifetime. For assessment maintenance, this research focuses on infrastructure condition, which will be influenced by time and environment factors. It can react to the history of inspection data and use these data for regressive analysis to predict future condition. According to this future condition, engineers can estimate its maintenance cost. Finally, according to these three kinds of maintenance strategies, system can calculate cost for each year in the future to provide a budget suggestion for administrators.