case of war and larger emergencies. Bergen Air Transport started flights to Notodden in 1999. A new secondary surveillance radar was built between 1999 and 2001 at Sotra. The domestic terminal was expanded with and a new baggage sorting area with in 2001. SAS bought Braathens in 2001, and from the following year, only SAS flew the Oslo route. Within months, Norwegian started a low-cost route to Gardermoen. SAS Commuter took over Norwegian's regional routes in 2003. The Norwegian Meteorological Institute closed its office at the airport in 2003 and all meteorological observations have since been carried out by Avinor. In 2004, SAS and Braathens merged to form SAS Braathens. The airline changed its name back to Scandinavian Airlines in 2007. The international arrival section was expanded with in 2005, followed by an extra story over part of the terminal, used as offices and allowed a doubling of the size of the duty-free. Wanderlust announced Flesland as Europe's best and the world's sixth-best international airport in 2009. The helicopter terminal was renovated in 2009. An airport surveillance radar was installed in 2010 and a new backup radar was installed in 2011. An additional of office space was added in 2010. Widerøe took over SAS' regional routes to Bergen in 2010. Facilities The main terminal covers an area of , of which is used for passenger areas. The terminal has reached its capacity for simultaneous passengers, and especially security, check-in, arrival hall and baggage handling have limited space. All passengers traveling on international flight must pass through the duty-free shop in order to get to their flight. There is a possibility for some passengers (for example, those allergic to perfume) to ask security to use a narrow corridor which bypasses the shop. Nonetheless, the layout has been criticized by teetotalist organizations. The airport's response is that the layout was needed due to the terminal's small size. The shop has also been criticized for informing passengers who purchase less than their permitted tax-free quota of alcohol that they are allowed to purchase more. The Norwegian Directorate for Health and Social Affairs indicated that this may violate the ban on alcohol advertising. The gates at the new terminal are numbered B15 to B20. They are served by domestic flights. International flights depart from the older 1988 terminal which has 9 jet bridges, numbered 23 through 29, 31 and 32. Gate 30, next to