Paris for 31 percent of the GDP of France. According to the Economist Intelligence Unit Worldwide Cost of Living Survey in 2018, Paris was the second-most expensive city in the world, behind Singapore and ahead of Zurich, Hong Kong, Oslo and Geneva. The city is a major rail, highway, and air-transport hub served by two international airports: Paris-Charles de Gaulle (the second busiest airport in Europe after London Heathrow Airport with 69.5 million passengers in 2017) and Paris-Orly. Opened in 1900, the city's subway system, the Paris Métro, serves 5.23 million passengers daily, and is the second busiest metro system in
Salt Lake City International Airport new fire station were opened in 1999. In 2001, Concourse E was expanded for additional gates and SkyWest Airlines opened its new maintenance hangar and training facility. In 2002, the airport saw heavy crowds as Salt Lake City welcomed over one million visitors for the Winter Olympics. Recently the airport has upgraded its access roads and parking facilities in preparation for a new terminal. The airport has made minor upgrades to the terminals and concourses including expansion of baggage claim facilities. Three days after the Paris terror attacks, an Air France A380 traveling from Los Angeles, California to Paris, France