The station will be clad in a material designed for the space industry
Newport station is undergoing a £22m revamp to give it a space-age feel in time for the Ryder Cup golf tournament.
The 11 month project will see the venue almost double in size with a platform extension to cope with longer trains and an entrance on the northern side.
The new look station will be clad in a material developed for the space industry and used on the Eden Project.
Arriva Trains Wales head of stations Peter Northcott said the station would be a "landmark building for the city".
Engineers have begun the work increasing the station's size to 2,100 sq m (22,500 sq ft).
Network Rail claims accessibility and safety are at the heart of the new design, with two new terminals and an additional new entrance to serve passengers from the northern side of the city.
A station footbridge will connect passengers to all platforms while the station will also have three lifts, CCTV, a modernised customer information system and new waiting shelters.
Both terminals will also have improved ticketing and information points and more shops.
Engineers have begun the 11 month engineering works
The car park will have an additional 250 spaces and platform four will be extended by 50m (160ft).
The building will be clad in ethylene tetra fluoro ethylene (ETFE).
Network Rail said ETFE, originally designed for the space industry, was chosen because it is extremely lightweight compared to glass and will require significantly less steel to support the structure.
In addition, the material provides better insulation than double glazing, does not degrade under ultraviolet light or atmospheric pollution and its non-stick, self-cleaning design means that grime can be easily removed by rain, said Network Rail.
The firm's route enhancement manager, Mike Gallop, said: "This is the beginning of a new chapter for the people in Newport and for rail passengers travelling into Wales.
"There is still much to do and we have a big task ahead, we will continue to work hard to make the new station happen."
Deputy First Minister and Minister for Economy and Transport, Ieuan Wyn Jones, said the station would "provide a great impression for those entering Wales".
He said: "This will also be an important development as Newport prepares to welcome the Ryder Cup in 2010 when many people will be visiting here for the first time."
Newport council leader, councillor Matthew Evans, said the development would "act as a springboard to attract further regeneration in this part of the city centre".
"The modern and unique design of the new station will create an improved first impression for visitors arriving in the city for the Ryder Cup, but more importantly will create a lasting legacy which will benefit all Newport residents."
John Burrows, Chief Executive of Newport Unlimited, the Urban Regeneration Company for the city said: "The new station will be another striking addition to the rapidly changing Newport skyline."