>>1021301New stations of the green line were planned for the orange one, but as they are required for the FIFA World Championship, and with the state of orange line continuation(2 station out of 4 by 2019), they were assigned to the green one. So they are planning to build a transfer orange/green station and continue orange line to the north-west. The green-purple one as well as the orange/green one should ease the center stations somewhat. This is also the sole reason behind the first part of brown line. It should go to the north-east someday, but obviously not soon. The line between red and orange lines was there in previous plans, but now it seems a bigger ring line took some of it. The purple parts of this pic are being built right now, so they would be done by 2019, but everything green probably wouldn't be done even in 50 years.
