A sign at the new Miami International Airport Metrorail Station which opened on Satruday, July 28, 2012. Kristofer Rios / Miami Herald Staff

Passangers traveling north on the new Orange Line train to Miami International Airport on Saturday, July 28, 2012. Kristofer Rios / Miami Herald Staff

Passangers waiting for southbound Orange Line train at the new Miami International Airport Metrorail Station on Saturday, July 28, 2012. Kristofer Rios / Miami Herald Staff

The first northbound Orange Line train to Miami International Airport at Dadeland South Metrorail station on Saturday, July 28 2012. Kristofer Rios / Miami Herald Staff