This is the 15974th most frequent Polish word.
tramwajowej
The word "tramwajowej" is the genitive or locative singular form of "tramwajowa," meaning "tram" or "streetcar" (adjective form, related to trams).
Here, 'tramwajową' is an adjective in its feminine singular accusative form, modifying the noun 'linię' (line).
Linię tramwajową niedawno wyremontowano.
The tram line was recently renovated.
In this sentence, 'tramwajowych' is the adjective in its masculine personal plural genitive form, modifying 'stopni' (steps).
Czy znasz historię stopni tramwajowych w tym mieście?
Do you know the history of tram steps in this city?
Here, 'tramwajowe' functions as an adjective in its neuter plural nominative form to describe 'rozwiązania' (solutions).