Proportions of trips by category of workplace parking policy at baseline and follow-up within the complete case sample
| Workplace parking policies | Participants (n) | Transition periods (t) |
| Transitions to less restrictive policies | ||
| Stable no parking (reference) | 206 | 340 |
| No parking to free or paid parking | 85 | 105 |
| Stable paid parking (reference) | 233 | 431 |
| Paid parking to free parking | 16 | 27 |
| Transitions to more restrictive policies | ||
| Stable free parking (reference) | 359 | 603 |
| Free parking to paid or no parking | 51 | 66 |
| Stable paid parking (reference) | 232 | 431 |
| Paid parking to no parking | 21 | 36 |