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Percentages of reductions compared to the status quo modelling results total runoff volume, average peak runoff, and runoff coefficient for both UGI scenarios and different rainfall events
| Rainfall event | UGI scenario | Runoff volume (%) | Peak runoff (%) | Runoff coefficient (%) |
|---|---|---|---|---|
| 1 (4-month duration) | S1 | 60.3 | 55.7 | 60.5 |
| S2 | 8.0 | 21.5 | 8.0 | |
| 2 (10-year event) | S1 | 57.2 | 57.9 | 58.5 |
| S2 | 12.4 | 33.3 | 13.8 | |
| 3 (50-year event) | S1 | 50.5 | 58.4 | 51.0 |
| S2 | 8.4 | 14.2 | 8.7 |
