1. A road or highway classified as secondary in a road infrastructure system, typically connecting smaller towns or serving as an alternative to primary routes
We took a secondary road through the countryside instead of the highway.
Pegamos uma estrada de segunda categoria através da zona rural em vez da autoestrada.
2. A road maintained at a lower standard than primary roads, with less traffic volume and infrastructure investment
The secondary roads in rural areas are not always well-maintained.
As estradas de segunda categoria nas zonas rurais nem sempre são bem mantidas.