Review Article
2 + 1 Highways: Overview and Future Directions
Table 5
Comparison of international 2 + 1 road safety performance.
| Country | Median barriers | Crash reduction (compared to two-lane highway) (%) | Fatal | Fatal + injury | All |
| Sweden [45] | Yes | 76–82 | 55–60 | — | Sweden [45] | No | 35–40 | 35–40 | | Sweden [10] | Yes | 80–90 | — | — | Finland [2] | Yes | 46 | 25 | — | Finland [2] | No | 0 | 11 | — | Germany [2] | No | — | 36 | 28 | Denmark [27] | No | 50 | — | — | Denmark [27] | No | 0 | 76 | — | United States [13] | No | — | 27 | 44 |
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