What will ultimately happen to Dubai International , though , remains to be seen . Dubai , Abu Dhabi , Doha , Istanbul and Riyadh are all upgrading their main transport hubs . There is pressure in the region to build the most 'iconic ' airport . The combined capacity in the region will number 450 million -- three times current traffic . Comment:
Dubai , Abu Dhabi , Doha , Istanbul and Riyadh are all upgrading their main transport hubs . There is pressure in the region to build the most 'iconic ' airport . The combined capacity in the region will number 450 million -- three times current traffic . Comment: