Secondary
'Carretera secundaria' in Spanish refers to a less busy, often smaller thoroughfare or road that serves as an alternative to larger, main roads. It is similar to what English speakers might call a 'secondary road'. These roads are typically found in more rural or suburban areas and can be less congested and more scenic, although they may also be less well-maintained or slower to travel on compared to primary roads.
I took an alternative route through the secondary road to avoid traffic.
This sentence is referring to making use of a less busy, secondary road as a method of avoiding heavy traffic that is typically found on main roads.
The secondary road was full of potholes and was difficult to navigate.
This sentence describes the condition of a secondary road that has many potholes and is difficult to drive on due to its poor upkeep.
You live in a house at the end of a secondary road.
This sentence is simply stating a fact that someone's residence is located at the end of a secondary road.