| Impact level | Description | Pedestrians on single side | Estimated saturate speed |
| Level I | Seriously | Inside pedestrians Lin = 0 - 2 m | <18.0 km/h |
| Level II | Moderately | Inside pedestrians, Lin = 2 - 4 m, or outside pedestrians, Lout = 0 - 2 m; | 18.0 - 19.8 km/h |
| Level III | Generally | Outside pedestrians, Lout = 2 - 4 m | 19.8 - 21.6 km/h |
| Level IV | Barely | L > 4 m | >21.6 km/h |
| No pedestrian | No effect | No pedestrian | 23.0 ± 1.5 km/h |