Raleigh-Durham International Airport (RDU) in the US will construct a bypass to separate traffic heading to Terminal 2 from traffic heading to Terminal 1.
The new road is expected to reduce congestion on the roadways and commercial curbs around the airport's terminals, according to bizjournals.com.
Preliminary design work has produced three proposals for the project, with the cheapest estimated to cost $5.3m and the most expensive, which includes the construction of a bridge, costing $23.5m.
Each proposal for the project includes the costs for engineering services, design and construction.
RDU is currently studying the proposals and is expected to begin construction in 2012.