In 1960, Fort Worth purchased Amon Carter Field and renamed it Greater Southwest International Airport GSW in an attempt to compete with Dallas' more successful airport. However, GSW's traffic continued to decline relative to Dallas Love Field. By the mid-1960s, Fort Worth was getting 1% of Texas air traffic while Dallas was getting 49%, which led to the virtual abandonment of GSW. The joint airport proposal was revisited in 1961 after the FAA refused to invest any more money in separate Dallas and Fort Worth airports. Although the Fort Worth airport was eventually abandoned, Dallas Love Field became congested and had no more room to expand. Following an order from the federal government in 1964 that they would unilaterally choose a site if both cities could not come to an agreement on a site, officials from the two cities finally agreed on a location for a new regional airport that was north of the abandoned GSW and almost perfectly equidistant from the two city centers. The land was purchased by both cities in 1966, and construction began in 1969.