THE INTERNATIONAL COUNCIL ON CLEAN TRANSPORTATION
The analysis presented here rigorously compares the efficiency of all airlines independent of size, network structure, or type of service, with a methodology that improves upon previous efforts in four fundamental ways. First, it uses airline-reported fuel consumption data, rather than modeled estimates, to account fully for all the ways in which airlines can reduce fuel burn…Second, it develops an efficiency metric that recognizes that airlines burn fuel to provide both mobility…and access, allowing an equitable comparison between airlines. Third, the efficiency metric distinguishes productive from nonproductive miles flown by identifying those airlines that operate particularly circuitous routes. Finally, the study attributes the transport service provided by and fuel consumption of affiliate carriers to mainline carriers in order to enable comprehensive comparisons across carriers’ full business operations.
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