Life Cycle Performance-Based Optimal Cost Allocation Methodology for Railroad Bridge Networks

초록

Unlike conventional road bridges, railroad bridges need to provide the strategy for the balanced network level maintenance because it is unable to construct detour lanes when emergency situations occur. This study presents the practical and reasonable cost allocation method for railroad bridges by using Linear Programming(LP) with the objective of network performance maximization based on life cycle maintenance cost and the performance of each bridge in the network. With the proposed method, it is applied to a virtual railroad line and it is found to be applicable to the real problems for optimal railroad bridge maintenance.