Table 1.
Summary of retreat approach methods and criteria used to determine infrastructure and dwelling retreat.
| Approach | Scenario | Dwelling retreat criteria | Land transfer criteria | Infrastructure retreat criteria |
|---|---|---|---|---|
| All-at-once | All-at-once-XA | 0.98 m SLR-XA | Full value | 0.98 m SLR-CE |
| All-at-once-CE | 0.98 m SLR-CE | |||
| Threshold-based | Threshold-based-veg | ≤ 6 m from SLR-CE | SLR-CE | Harden ≤ 6 m SLR-CE, retreat all at 2100 using 0.98 m SLR-CE |
| Threshold-based-wave | SLR-XA | |||
| Reactive | Reactive-veg | Intersecting or seaward of SLR-CE | SLR-CE | Harden road intersecting or seaward of SLR-CE, retreat all at 2100 using 0.98 m SLR-CE |
| Reactive-full-loss | No value left |