HEATHROW remains British Airways favourite airport. In a submission to the government consultation on aviation capacity in the south east BA says that a third runway at the world”s busiest international airport is a key to boosting Britain's economy. For any further expansion Gatwick should take priority over Stansted. BA suggests a short runway to the north of the airport and parallel to the M4 essentially for regional traffic. The proposal also talks about Airtrain, a link from Heathrow to Staines although clearly if the airport is to maintain its role as the most important international airport in the globe better rail links must be a priority for the future. http://www.ba.com