In the 1960s, Montreal experienced a tremendous economic boom. Massive construction projects, including the Montreal Metro and those linked with the hosting of Expo 67, brought the city international status. More and more visitors were arriving to the city, especially by airplane but not always by choice. The federal government required European airlines to make Montreal their only Canadian destination. That resulted in 15–20% annual growth in passenger traffic at the city's Dorval Airport. Optimistic about the city's future and its continuing ability to attract more and more visitors, government officials decided to build a new airport that would be more than able to absorb increased passenger traffic well into the 21st century.
