Flood hazard mapping is an exercise to define those coastal areas which are at risk of flooding under extreme conditions. As such, its primary objective is to reduce the impact of coastal flooding. However, mapping of erosion risk areas may serve to achieve erosion risk reduction. It acts as an information system to enhance our understanding and awareness of coastal risk.
Some preparedness measures are suitable for all coastal elements. These rather informative measures like Cost-Effectiveness Analysis, Vulnerability Assessments, or Multi-Criteria Analysis (MCA) can be applied in several contexts. Therefore, these and other can be considered as supporting tools in planning and implementing DRR measures.