Impact level | Speed of saturation flow (km/h) | Headway of saturation flow (s) | Saturation flow (puc/h) | Reduction to the saturation flow (%) |
Level I | <18.0 km/h | 2.36 ± 0.15 | 1525 | 15.7% |
Level II | 18.0 - 19.8 km/h | 2.23 ± 0.10 | 1614 | 10.7% |
Level III | 19.8 - 21.6 km/h | 2.11 ± 0.07 | 1706 | 5.8% |
Level IV | >21.6 km/h | 2.05 ± 0.05 | 1756 | 3.0% |
No effect | 23.0 ± 1.5 km/h | 1.99 ± 0.05 | 1809 | - |