Question: North Lake College is a community college that is part of the Dallas County Community College District and is located in the Las Colinas area of Irving, Texas, in 2012 a Dallas Area Rapid Transit train station opened on North Lake's central campus, connecting it to downtown Dallas, Dallas/Fort Worth International Airport, and which city-owned public airport 6 miles (10 km) northwest of downtown Dallas, Texas?
Sentence (from "Dallas Love Field"): It was Dallas' main airport until 1974 when Dallas/Fort Worth International Airport (DFW) opened.
Relevant evidence: No