City | | | | |
Frankfurt | 0.3 | 0.2 to 0.4 | 0.4 | 0.3 to 0.5 |
Brussels | 0.9 | 0.7 to 1.1 | 0.5 | 0.4 to 0.6 |
Paris | 0.3 | 0.2 to 0.4 | 0.3 | 0.3 to 0.5 |
Boston | 1.0 | — | 1.0 | — |
New Orleans | 1.2 | 0.9 to 1.4 | 1.1 | 0.8 to 1.4 |
Seats per vehicle | | | | |
2–3 | 216.0 | 30 to ∞ | 406.0 | 54 to ∞ |
4–6 | 1.0 | — | 1.0 | — |
7+ | 0.8 | 0.6 to 1.0 | 0.6 | 0.4 to 0.9 |
Occupant mix | | | | |
1 adult + 1 child | 1.0 | — | 1.0 | — |
1 adult + 2 children | 0.7 | 0.6 to 0.9 | 0.7 | 0.6 to 0.9 |
1 adult + 3 children | 1.8 | 1.2 to 2.7 | 2.0 | 1.3 to 3.1 |
1 adult + 4 or more children | 4.5 | 2.2 to 9.1 | 5.3 | 2.5 to 11.1 |
2 or more adults + 1or more children | 0.1 | 0.1 to 0.1 | 0.1 | 0 to 0.1 |
Driver seat belt use | | | | |
Belted | 0.5 | 0.4 to 0.6 | 0.7 | 0.6 to 0.8 |
Unbelted | 1.0 | — | 1 | — |
Unknown | 0.3 | 0.2 to 0.5 | 0.5 | 0.3 to 0.8 |