This is the 6627th most frequent Portuguese word.
ferroviária
"Ferroviária" means "railway" or "related to railways" in English.
Here, 'ferroviária' is used as an adjective modifying 'estação,' indicating the type of station (railway).
A estação ferroviária estava cheia de passageiros.
The railway station was full of passengers.
In this sentence, 'ferroviária' is an adjective modifying 'empresa,' referring to the type of company (relating to railways).
Ela decidiu trabalhar na empresa ferroviária.
She decided to work at the railway company.
'Ferroviária' modifies 'rede,' describing the network as being related to railways.