With the reconstruction of the country after the First World War, the railway in the Kingdom of Serbs, Croats and Slovenes became the main means of transport and the initiator of modernization. The construction of new railway routes that connected populated areas, such as the Adriatic route, which was in the focus of the professional public, initiated the construction of smaller station buildings, for which Zloković, in response to outdated projects which “reflected the indifference of the traffic administration”, typical solutions of simple refined architecture. The conceptual solutions of the railway stations in Umka and Obrenovac stand out, which was based on a modernist design in which a geometrized horizontal structure with a flat roof and larger glazed openings dominates. Zloković believed that even the smallest station building, falls within the scope of architecture and that the appearance of station buildings has an impact on passengers. Therefore, he advised that appropriate solutions be obtained through a public competition, which would not disturb the view of railway routes or areas that passengers first encounter when arriving in a certain place.