The work is needed to ease traffic congestion, the RTA told Arabian Business, with the number of travellers through the airport expected to rise to 92 million a year by 2020.
The project will include the construction of a service road and flyover - as well as various tunnels and bridges. It is due to be completed by 2017, Arabian Business said. The winning bidder for the contract has not yet been named, it said.
"The RTA is proceeding with the upgrading of the infrastructure of road networks and mass transit systems in Dubai emirate, and figuring out integrated solutions for land and marine transit systems that are safe for users, compatible with the Dubai Strategic Plan 2021, responding to the needs of hosting Expo 2020 and demographic growth," Mattar Al Tayer, director-general of the RTA, said, according to the Arabian Business report.
The infrastructure project, once finalised, will allow an extra 5,000 vehicles to pass over the main road to the airport per hour, according to the report. Earlier this year the Dubai RTA announced that it was putting a train station commercial development out to tender.