| Vertical curve type | Ramp design speed (km/hour) | |||||||
| 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | |
| Crest vertical curve radii(2) | ||||||||
| One lane or two lane directional ramp (object height = 0.15 m)(3) | 230(1) (160) | 410(1) (405) | 760 | 1230 | 2035 | 3320 | 4915 | 4250 |
| Sag vertical curve radii(4) | ||||||||
| One lane or two lane directional ramp(3) | 230 | 410 | 645 | 930 | 1260 | 1650 | 2085 | 2575 |