The M25 could be diverted through a tunnel under Heathrow's third runway as part of the airport's expansion plans. Here's how the motorway's new route could look.
A Washington Post analysis of FAA maps shows the proximity of the flight path to a helicopter “tunnel” at a midair crossroads ...
A new map created by the Hearst Television Data Journalism Team ... The plane was preparing to land at runway 33 at the ...