Modernism is partially revealed in the architectural style of railway buildings and other infrastructure across Australia. The now closed Civic Railway Station on the Hamilton-Newcastle branch line is just one example of how this happens in the regional city of Newcastle.

Modernism is a form architecture which emerged in the first half of the 20th century and became dominant after World War II. It was based upon new technologies of construction, particularly the use of glass, steel and reinforced concrete; and upon a rejection of the traditional neoclassical architecture and Beaux-Arts styles that were popular in the 19th century. (Wikipedia)
According to the New South Wales Heritage Inventory Civic Railway Station is:
The station building is the first Interwar Functionalist railway building in NSW to employ domestic architectural features, demonstrating the NSW Railways experimentation with new styles during the Interwar period. The footbridge is unique as the only known example of this structure constructed on brickpiers. The signal box is unique as the smallest elevated box constructed on the NSW rail system.
The Civic Railway Station and surrounding buildings were built in 1935 in the Interwar Functionalist style using dichromatic and polychromatic brickwork as a simple decorative effect.
The railway station is located between Wickham and Newcastle railway stations.

History
Originally the station was part of the railway line built between ‘East Maitland’ railway station and ‘Newcastle’.
The line was originally built in 1857-1858 as a link between the government town of East Maitland and the river port at Newcastle.
The Newcastle station was re-named Honeysuckle and Honeysuckle Point near the river port and has a number of locations.
The large goods yards east of ‘Newcastle’ railway station was constructed in 1858.
The site of Civic Railway Station is significant as it was the former 1857 site of the Newcastle (Honeysuckle) terminus of the Great Northern Railway Line.
Electrification of the Gosford-Newcastle line occurred in 1984, after the Sydney-Gosford section in 1960.
Civic Railway Station was closed in 2014 by the Baird Liberal Government when the line between Hamilton and Newcastle was finally closed after much community dissent.

Significance
According to the New South Wales Heritage Inventory:
The Civic Railway Station site is historically significant as the location of the Newcastle terminus station on the Great Northern Railway line (1857), one of the first railway lines in Australia. The station building represents the first attempt to adapt domestic architectural styles for railway purposes. The station buildings and footbridge, are good examples of Inter-War Railway Domestic style in regional NSW.

Civic Railway Station is largely intact and retains much of its original integrity from 1935, along with the signal box, platform shelter, footbridge and forecourt.
Great post! Would you mind sharing the source of the historical photo of the station? It is unique to what I have already found on trove featuring the station!
The historical source is the State Archives and Records New South Wales at Kingswood NSW