UK-based Heathrow Hub has announced a second and final expansion plan for submission to the Airports Commission in an attempt to win approval.
As part of the plan, there would be no third runway, but the existing runway will be extended at its northern side to develop two separate sections for takeoff and landing.
The new plan also includes a new passenger facility in the north of the airport, which would connect the airport to the Crossrail and the Great Western Line rail services, while offering a second access point for road travellers arriving from outside London.
A new dedicated automated people transporter would also be deployed at the facility to move customers to the airport terminals in five minutes.
Heathrow Hub concept promoter Jock Lowe said: "Our proposal is the most efficient, cost-effective and politically realistic of the three proposals shortlisted by the Airports Commission.
"We offer the best solution to local communities concerned about noise or compulsory purchase of homes, and Heathrow can finally connect to the national rail network and better accommodate the arrival of new passengers via our new railway and passenger hub."
The Heathrow Hub proposal addresses the following key issues for airport expansion in the south-east: noise, surface access, cost and location.
The plan is expected to expand the airport's capacity by 220,000 flights a year, ending the current deadlock over Heathrow's third runway.
If it is recommended for approval in 2015, the extension would be completed by 2023 and is expected to offer £45bn of economic benefits and create 19,000 jobs.
The airport has included several key features as part of the noise mitigation strategy, such as potentially curtailing or ending night quota flights, shifting the touchdown point to eliminate large areas of west London from noise footprint and an enhanced respite mitigation strategy.
In addition, Heathrow Hub's surface access solution for the airport includes the remodelling the road network around the airport and the connection of Heathrow to the national rail network, which includes 30 trains an hour.
The solution also proposes an enhanced junction 13 and a new junction to the new passenger interchange, no closure of the M25, as well as parking, transport and hotel amenities at the new passenger facility .