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224 Acronyms and Abbreviations ABS Address-Based Sampling ACI Airports Council International ASQ Airport Service Quality AVI Automated Vehicle Identification COVID Coronavirus Disease 2019 (COVID-19) Respiratory Illness CRM Customer Relationship Management CX Customer Experience EDCD Electronic Data-Collection Device FAF Freight Analysis Framework IATA International Air Transport Association IDI Individual Depth Interviews KPI Key Performance Indicator OAG Official Airline Guide O-D OriginâDestination RDD Random-Digit Dialing SEE Standard Error of the Estimate TA Travelers Assistance TNC Transportation Network Company URL Uniform Resource Locator VIP Very Important Person XM Experience Management