Key: DEN=Denver International Airport; LAX=Los Angeles International Airport; SLC=Salt Lake City International Airport
Notes: Nonstop segments are represented by straight arrows, i.e., number of passengers transported between points (between takeoff and landings)
LAX to SLC: 100 passengers transported
SLC to DEN: 110 passengers transported
Onflight markets are represented by curved lines, i.e., where passengers are enplaned and deplaned on a flight
LAX to SLC: 40 passengers
LAX to DEN: 60 passengers
SLC to DEN: 50 passengers
For a one-stop flight, the number of passengers would be the same as under segment and market.
Source: U.S. Department of Transportation, Office of the Secretary, O&D Survey Reporting Regulations for Large Air Carriers: Code of Federal Regulations Part 241, Section 19-7 (Washington, DC: 1992).