Relocation of Structures from Eroding Coasts

加速海岸侵蚀的首选办法是结构性的，如海岸线硬化，例如防波堤和海堤。非结构性措施包括管制、在沙丘上种植、移走高位芽植物等。一项措施是将现有建筑物迁往陆地，这在技术上是可行的，但很少是一种适应海岸加速侵蚀的实用形式。这项技术在不久的将来可能成为一种重要的替代技术，特别是在海平面可能上升的情况下。目前的工作着眼于关于搬迁经验的国家清单；搬迁的经济和法律奖励/障碍；搬迁作为减灾技术的评价；评估搬迁工作以实现多种公共目标，并在必要时为政策和进一步研究提出建议。

The preferred approaches to accelerated coastal erosion have been structural in nature like shoreline hardening, e.g., breakwaters and seawalls. Non-structural measures include regulations, planting on dunes, removal of phreatophytes among others. One measure, relocation of existing structures landward, is technically feasible but seldom a utilized form of adjustment to coastal accelerated erosion. This technique may be an important alternative in the near future, particularly in light of possible sea level rise. The present work looks at the national inventory on relocation experience; economic and legal incentives/obstacles to relocation; evaluation of relocation as a hazard mitigation technique; evaluation of relocation for achieving multiple public goals; and the formulation of recommendations for policy and for further research if needed.