Yes the complex is still in use. Originally it was just the long-track which I had seen previously but didn't get the proper sense of scale. That same space now is divided into 3 sections - the first has 2 hockey rinks side by side, the second has 6 basketball courts side by side and the the third has a running track (300 meters as opposed to normal 400meters) with the inside of the track having hardwood courts for volleyball and badminton.
The inlaid ceiling does look very striking and has an interesting side story - it is made from timber that was damaged by a pine beetle infestation. Therefore, it allowed the timber to be used for a better purpose than being ground into particle board or the like.