| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | roundabouts | Europe | Efficient traffic flow and widely used in road planning | 1 |
| 2 | roundabouts | Europe | Commonly used in traffic management, especially in the United Kingdom and European countries | 1 |
| 3 | roundabouts | Europe | Vehicles in the roundabout have right of way | 1 |
| 4 | roundabouts | Europe | Roundabouts are often used for urban traffic flow management | 1 |