Development of Bridge Deterioration Model in Bridge Management System

The article proposes a method to develop bridge deterioration model in bridge manage ment systemby Markov Process or Semi- Markov Process, and programfor themas well. We can predict bridge future con- dition through the bridge deterioration model. Its result can help the bridge manager to make decisions, and also can be the foundations for bridge decision optimization. When bridge condition data are not enough, its procedure can be an instruction for the data collection ofbridge management system.