1. A major road or expressway experiencing heavy traffic flow, causing significant delays and reduced vehicle movement
The congested highway caused a two-hour delay during rush hour.
A rodovia congestionada causou um atraso de duas horas durante a hora do rush.
2. A highway with excessive vehicle volume that slows down traffic circulation
We avoided the congested highway by taking a back road.
Evitamos a rodovia congestionada pegando uma estrada alternativa.