Heathrow is the busiest international airport in the world. This year, 70 airlines will fly 27; million passengers in and out of Heathrow's three terminals. Many will travel on the bigger wide-bodied jets and as aircraft continue to grow, the airport must also continue to expand.
Tonight Clive Jacobs and the Going Places team report on Heathrow's new Terminal 4.
Producer IRENE MALUS
Editor ROGER MACDONALD