1 Urban taxis (Red) serve all destinations throughout Hong Kong including the airport except Tung Chung Road and roads in south Lantau. 2  New Territories (N.T.) taxis (Green) serve only the New Territories and specific roads in Lantau.3  Lantau taxis (Blue) serve all destinations in Lantau and the airport.rriving passengers can pick up a taxi at the Taxi Station, which can be reached by the left-hand ramp outside the Arrivals Hall. Taxis in Hong Kong are colour-coded according to their operating areas.