Interesting effect and details from the front of the Central Station under reconstruction - behind the building coverage.
From the net:
Oslo S is Norway's busiest hub. In a few years is anticipated that as many as 100 million people will be visiting Oslo S during one year.Oslo S is Norway's main hub and the largest and most important hub in the common Norway. Both now and in the future. While the station is fully operational, planning room a new Oslo S which will be by far the largest drive for both trains and all other public transport.