Planning and developing infrastructure, relocating and resettling residential areas in places frequently affected by natural disasters; developing and constructing typhoon and flood resistant housing in the North Central and South Central regions; consolidating and developing new, large-scale water supply and drainage works for metropolitan areas; preventing erosion for river banks and coastal areas; deploying structural and non- structural adaptation measures to cope with droughts and saltwater intrusion. 3.4 Gaps and needs for enhancing climate change adaptation.