The Optimization Model in the Disaster Risk Mitigation Investment

The damage caused by the disaster impact the economy, society, and the environment evidently in recent years. The management of disaster risk is attached more importance. The cost-benefit analysis (CBA) and disaster risk analysis (DRA) are used gradually widely in the disaster risk management. In the disaster risk mitigation, the investment in the risk mitigation is considered as the cost, the reduction of the damage caused by the risk mitigation is considered as the benefit. In this paper, an optimization model is put forward based on the CBA and DRA. The model is helpful for the decision of the disaster risk mitigation investment, especially in the large engineering.