1. A major road with heavy traffic flow, typically used for long-distance travel between cities or regions
The accident on the busy highway caused a traffic jam for hours.
O acidente na rodovia movimentada causou um congestionamento por horas.
2. A well-traveled thoroughfare characterized by constant vehicular movement
We avoided the busy highway and took the scenic route instead.
Evitamos a rodovia movimentada e pegamos a rota cênica em vez disso.