You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser.
What if London Heathrow Airport was built from the start with four parallel runways instead of just the two?
What problems would be alleviated by this compared to the OTL?
How much extra traffic (aircraft & passengers) would it be able to handle today?
How would this effect London Gatwick?
Regards filers