"How do the world's major cities keep functioning? While planes usually require a two-minute gap between departures, at Heathrow, the world's busiest airspace, this margin has been reduced to 45 seconds. Watch how air traffic controllers manage this unique and highly regimented flight pattern. Also see how traffic on the streets and on the Thames is regulated." -- website
Notes
Off-air recording of National Geographic Channel broadcast May 4, 2009. Copied under Part VA of the Copyright Act
Credits
Executive producers: Mickey Stern & John Brenkus; writer: Gary Parker