| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | roundabout | traffic engineering | Roundabouts improve traffic flow and reduce congestion in many countries according to traffic engineering culture. | 3 |
| 2 | speed bump | traffic engineering | Speed bumps are strategically installed in traffic engineering to control speed and enhance road safety. | 2 |
| 3 | lane merging | traffic engineering | Traffic engineering has successfully optimized traffic flow and reduced bottlenecks through the concept of lane merging. | 1 |