Original: AtatÃ 1\/4 rk shares traffic with Sabiha GÃ kÃ en International Airport , which is on the Anatolian ( Asian ) side of Istanbul , which had annual passenger traffic of just 11.1 million in 2010 .
Simplified: It is located in the European part of Istanbul . In 2010 , an estimated 32 million passengers used AtatÃ 1\/4 rk Airport .