Qatar Airways plans to invest $1bn on infrastructure expansion at Doha International Airport to cope with rising passenger traffic and fleet size until the new airport opens in 2012, reported The Peninsula. The plan includes the increasing the seating capacity of the airline's Premium Terminal to 570, in addition to increasing the number of shower rooms, buffet and dining areas and an almost doubled duty free space. The airline has also announced that over the next 10 months it will add six new routes to its burgeoning network: Goa and Amritsar in India, Sydney and Melbourne in Australia, and two European cities. The carrier has also announced that over the next 10 months it will add six new routes to its network: Goa and Amritsar in India, Sydney and Melbourne in Australia, and two European cities.