| Terms | Glossary |
|---|
| Activity | Persons age 16 and over were asked to classify themselves by their main activity, i.e., working full or part time, a homemaker, in the armed forces, going to school, or retired. ( American Travel Survey ) |
| Actual Arrival Times | Gate arrival time is the instance when the pilot sets the aircraft parking brake after arriving at the airport gate or passenger unloading area. If the parking brake is not set, record the time for the opening of the passenger door. Also, carriers using a Docking Guidance System (DGS) may record the official gate-arrival time when the aircraft is stopped at the appropriate parking mark. ( Airline On-Time Performance Data ) |
| Actual Departure Times | Gate departure time is the instance when the pilot releases the aircraft parking brake after passengers have loaded and aircraft doors have been closed. In cases where the flight returned to the departure gate before wheels-off time and departed a second time, report the last gate departure time before wheels-off time. In cases of an air return, report the last gate departure time before the gate return. If passengers were boarded without the parking brake being set, record the time that the passenger door was closed. Also, carriers using a Docking Guidance System may record the official gate-departure time based on aircraft movement. For example, one DGS records gate departure time when the aircraft moves more than 1 meter from the appropriate parking mark within 15 seconds. Fifteen seconds is then subtracted from the recorded time to obtain the appropriate out time. ( Airline On-Time Performance Data ) |
| Air | Air service for shipments that typically weigh more than 100 pounds using commercial or private aircraft. Includes air freight and air express. ( Commodity Flow Survey ) |
| Air Freight | Property, other than express and passenger baggage transported by air. ( Air Carrier Statistics - All Carriers, Small Air Carrier Statistics, Air Carrier Statistics - U.S. Carriers ) |
| Air Taxi | A classification of air carriers established by 14 CFR 298 which operate small aircraft, and do not hold a certificate of public convenience and necessity. ( Small Air Carrier Statistics ) |
| Air Time | The airborne hours of aircraft computed from the moment an aircraft leaves the ground until it touches the ground at the end of a flight stage. ( Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers ) |
| Air Traffic Liabilities | The value of transportation sold but not used or refunded; i.e., (1) liabilities to passengers, or (2) liabilities to others. These include payables to other airlines for portions of interairline passenger trips - amounts the ticketing carrier owes the performing carrier. Also included are amounts the ticketing carrier owes to passengers prior to flights - which remain unearned revenue until air transportation is provided. ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Air Trip | Any trip in which the type of transportation used to cover most of the miles on that trip was either by commercial airplane or a personal or corporate airplane. ( American Travel Survey ) |
| Aircraft And Traffic Servicing Expenses | Compensation of ground personnel, in-flight expenses for handling and protecting all non-passenger traffic including passenger baggage, and other expenses incurred on the ground to (1) protect and control the in-flight movement of the aircraft, (2) schedule and prepare aircraft operational crew for flight assignment, (3) handle and service aircraft while in line operation, and (4) service and handle traffic on the ground after issuance of documents establishing the air carrier's responsibility to provide air transportation. ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Aircraft Configuration | The type of payload an aircraft was designed to carry: passenger, cargo, or both. ( Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers ) |
| Aircraft Days Assigned | The number of days that aircraft owned or acquired through rental or lease (but not inter-change) are in the possession of the reporting air carrier and are available for service on the reporting carrier's routes plus the number of days such aircraft are in service on routes of others under interchange agreements. Includes days in overhaul, or temporarily out of service due to schedulecancellations. Excludes days that newly acquired aircraft are on hand but not available or formally withdrawn from air transport service. ( Air Carrier Summary Data ) |
| Aircraft Hours | The airborne hours of aircraft computed from the moment an aircraft leaves the ground until it touches the ground at the end of a flight stage. ( Small Air Carrier Statistics ) |
| Aircraft Operating Expenses | Expenses incurred directly in the in-flight operation of aircraft. ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Airline ID | An identification number assigned by US DOT to identify a unique airline (carrier). A unique airline (carrier) is defined as one holding and reporting under the same DOT certificate regardless of its Code, Name, or holding company/corporation. Use this field for analysis across a range of years. ( Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers, Air Carrier Summary Data, Aviation Support Tables, Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Airport Code | A three character alpha-numeric code issued by the U.S. Department of Transportation which is the official designation of the airport. ( Aviation Support Tables, Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers, Small Air Carrier Statistics, Airline Origin and Destination Survey (DB1B) ) |
| Arrival Delay | Arrival delay equals the difference of the actual arrival time minus the scheduled arrival time. A flight is considered on-time when it arrives less than 15 minutes after its published arrival time. ( Airline On-Time Performance Data ) |
| Available Seat Miles | The aircraft miles flown in each inter-airport segment multiplied by the number of seats available for revenue passenger use on that segment. ( Small Air Carrier Statistics ) |
| Average Miles Per Shipment | The 1993 CFS excluded shipments of STCC 27, Printed Matter, from calculation of average miles per shipment. This was done after determining that respondents in the 1993 CFS shipping newspapers, magazines, catalogs, etc., had used widely varying definitions of the term shipment. In the 1997 CFS, numerous efforts were made during data collection and editing to produce consistent results from establishments shipping SCTG 29, Printed Products. As a result, average miles per shipment for printed products is included in calculations for the 1997 CFS. ( Commodity Flow Survey ) |
| Business Trip | Any trip which the main purpose of the trip is given as business, combined business and pleasure or convention. ( American Travel Survey ) |
| CRS | Computer Reservation System. CRS provide information on airline schedules, fares and seat availability to travel agencies and allow agents to book seats and issue tickets. ( Airline On-Time Performance Data ) |
| Cancelled Flight | A flight that was listed in a carrier's computer reservation system during the seven calendar days prior to scheduled departure but was not operated. ( Airline On-Time Performance Data ) |
| Carrier Code | Code assigned by IATA and commonly used to identify a carrier. As the same code may have been assigned to different carriers over time, the code is not always unique. ( Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers, Small Air Carrier Statistics, Air Carrier Summary Data, Aviation Support Tables, Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Census Division | Groupings of states that are subdivisions of the four census regions. There are nine divisions, which the Census Bureau adopted in 1910 for the presentation of data. ( American Travel Survey ) |
| Census Region | Groupings of states that subdivide the United States for the presentation of data. There are four regions -- Northeast, Midwest, South, and West. Each of the four divisions is divided into two or more census divisions. ( American Travel Survey ) |
| Certificate Of Public Convenience And Necessity | A certificate issued to an air carrier under 49 U.S.C. 41102, by the Department of Transportation authorizing the carrier to engage in air transportation. ( Airline On-Time Performance Data, Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Certificated Air Carrier | An air carrier holding a Certificate of Public Convenience and Necessity issued by DOT to conduct scheduled services interstate. Nonscheduled or charter operations may also be conducted by these carriers. (same as Certified Air Carrier) ( Airline On-Time Performance Data ) |
| Certified Air Carrier | An air carrier holding a Certificate of Public Convenience and Necessity issued by DOT to conduct scheduled services interstate. Nonscheduled or charter operations may also be conducted by these carriers. (same as Certificated Air Carrier) ( Airline On-Time Performance Data ) |
| Charter Flight | A commercial passenger vehicle trip not scheduled, but specially arranged. The charter contract normally commits the carrier to furnish the agreed to transportation service at a specified time between designated locations. ( Aviation Support Tables ) |
| City Code | A three character alpha-numeric code issued by the U.S. Department of Transportation to designate the city where the origin or destination airport is located. ( Aviation Support Tables, Small Air Carrier Statistics, Airline Origin and Destination Survey (DB1B) ) |
| Codeshare | An arrangement whereby a marketing carrier's code is used to identify a flight operated by another carrier. The marketing carrier may make reservations and issue tickets for the operating carrier's flights. ( Airline Origin and Destination Survey (DB1B) ) |
| Commercial Operator | A person who, for compensation or hire, engages in the carriage by aircraft in air commerce of persons or property, other than as an air carrier or foreign air carrier or under the authority of 14CFR375. Where it is doubtful that an operation is for compensation or hire, the test applied is whether the carriage by air is merely incidental to the person's other business or is, in itself, a major enterprise for profit. ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Commodity | Products that an establishment produces, sells, or distributes. This does not include items that are considered as excess or byproducts of the establishment's operation. For the Commodity Flow Survey, respondents reported the description and the five-digit Standard Classification of Transported Goods (SCTG) code for the major commodity contained in the shipment, defined as the commodity with the greatest weight in the total shipment. ( Commodity Flow Survey ) |
| Commuter Air Carrier | An air taxi that provides scheduled passenger service between two points at least 5 days a week. ( Small Air Carrier Statistics ) |
| Completed Departures | Takeoffs made at an airport. (same as Departures Performed) ( Small Air Carrier Statistics ) |
| Coupon | A piece of paper or series of papers indicating the itinerary of a passenger. An airline ticket includes an auditor's coupon, flight coupons, and a passenger receipt. ( Airline Origin and Destination Survey (DB1B) ) |
| Deep Draft Vessel | A barge, ship, or ferry operating primarily in the open ocean. (Shipping on the Great Lakes and St. Lawrence Seaway is classified with shallow draft vessels.) ( Commodity Flow Survey ) |
| Departure Delay | The difference between the scheduled departure time and the actual departure time from the origin airport gate. ( Airline On-Time Performance Data ) |
| Departures Performed | Takeoffs made at an airport. (same as Completed Departures) ( Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers ) |
| Departures Scheduled | Takeoffs scheduled at an airport, as set forth in published schedules. (same as Scheduled Departures) ( Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers ) |
| Destination Of Trip | The place reported by a respondent as the destination of the trip. If more than one place is visited on the same trip, the place which is the farthest point from the origin is considered the destination of the trip. ( American Travel Survey ) |
| Destination State FIPS | The FIPS code for the destination state. (see FIPS) ( Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers ) |
| Distance Shipped | The distance between origin and destination for a shipment. For the distance shipped intervals table, the distance is calculated based on the great circle distance between the origin and destination ZIP Code centroids. All other distance-related data (i.e., ton-miles and average miles per shipment) are based on the mileage calculations produced by Oak Ridge National Laboratories. ( Commodity Flow Survey ) |
| Diverted Flight | A flight that is required to land at a destination other than the original scheduled destination for reasons beyond the control of the pilot/company. ( Airline On-Time Performance Data ) |
| Domestic Operations | All air carrier operations having destinations within the 50 United States, the District of Columbia, the Commonwealth of Puerto Rico, and the U.S. Virgin Islands. ( Small Air Carrier Statistics, Airline On-Time Performance Data ) |
| Duration Of Trip | Number of nights spent away from home on a trip and includes nights spent at the destination, nights spent en route and nights spent on side trips. It is possible for a trip not to involve an overnight stay from home; a traveler could take a trip of 100 miles or more and return on the same day. ( American Travel Survey ) |
| East North Central Division | Ohio, Indiana, Illinois, Michigan, Wisconsin ( American Travel Survey ) |
| East South Central Division | Kentucky, Tennessee, Alabama, Mississippi ( American Travel Survey ) |
| Educational Attainment | The highest grade of school completed as of the date of the first interview determines the educational category of the traveler or household head. ( American Travel Survey ) |
| Elapsed Time | The time computed from gate departure time to gate arrival time. ( Airline On-Time Performance Data ) |
| Express Freight | Property, other than passenger baggage transported by air, with a premium paid over standard freight charges for more rapid delivery. ( Air Carrier Summary Data ) |
| FIPS | Federal Information Processing Standards. Usually referring to a code assigned to any of a variety of geographic entities (e.g. counties, states, metropolitan areas, etc). FIPS codes are intended to simplify the collection, processing, and dissemination of data and resources of the Federal Government. ( Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers, Small Air Carrier Statistics, Airline On-Time Performance Data, Airline Origin and Destination Survey (DB1B), American Travel Survey ) |
| Family | Includes householder and all relatives who are currently members of the household. ( American Travel Survey ) |
| Family Income | The total combined income for the previous 12 months of the householder and all persons related to the householder by blood, marriage, or adoption who were living in the household as of the date of the first interview. Family income includes income from all sources, such as wages and salaries, net income from own business or own farm, social security, pensions, dividends, interest, rent and any other money income. The income of household members not related to the householder is not included in family income. ( American Travel Survey ) |
| Flight Equipment | All types of property and equipment used in the in-flight operation of aircraft. ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Flight Number | A one to four character alpha-numeric code for a particular flight. ( Airline On-Time Performance Data ) |
| Flying Operations Expenses | Expenses incurred directly in the in-flight operation of aircraft and expenses related to the holding of aircraft and aircraft operational personnel in readiness for assignment for an in-flight status. ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| For-Hire Truck | Trucks that carry freight for a fee collected from the shipper, recipient of the shipment, or an arranger of the transportation. ( Commodity Flow Survey ) |
| Form 41 Financial Statistics | The statistics collected on the financial forms submitted monthly, quarterly, semiannually, and annually to BTS by each large certificated air carrier subject to the Federal Aviation Act of 1958. The four classes of financial and operating statistics collected on individual schedules of the Form 41 Report are grouped as follows: (A) Certification, (B) Balance Sheet Elements, (P) Profit and Loss Elements, and (T) Traffic and Capacity Elements. ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Form 41 Report | The schedule of forms submitted monthly, quarterly, semiannually, and annually to BTS by each large certificated air carrier subject to the Federal Aviation Act of 1958. ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Gateway | In international travel, the port where customs clearance takes place. ( Airline Airline Origin and Destination Survey (DB1B) ) |
| Great Circle Distance | The shortest distance between two points on the earth's surface. ( Commodity Flow Survey ) |
| Great Lakes | A single mode specially created in ORNL's transportation network for the Commodity Flow Survey for mileage calculations which involve transportation via the Great Lakes between the origin and destination ZIP Codes (see the Mileage Calculations section for more details). ( Commodity Flow Survey ) |
| Hispanic Origin | Referring to any person whose primary ethnic ancestry is of primarily Spanish-speaking countries. Hispanic origin includes Mexican, Puerto Rican, Cuban, Central or South American, or other Hispanic origin. ( American Travel Survey ) |
| Household | The basic sampling and reporting unit for collecting travel and other information in the American Travel Survey. A household consists of all persons who occupy a housing unit such as a house, apartment, or rooms that form separate living quarters. ( American Travel Survey ) |
| Household Composition | One of any classifications regarding the relationship of household members to each other and the presence or absence of children. ( American Travel Survey ) |
| Household Type | A classification taking into account the number of household members and their relationship to each other. Household types include family households and non-family households. Family households include married-couple households, female householders, and male householders with and without children in selected age groups. Non-family households include male and female householders living alone or not living alone. ( American Travel Survey ) |
| In-Flight Time | The total time an aircraft is in the air between an origin-destination airport pair, i.e. from wheels-off at the origin airport to wheels-down at the destination airport. ( Airline On-Time Performance Data ) |
| Large Certificated Air Carrier | An air carrier holding a certificate issued under 49 U.S.C.41102, as amended, that: (1) Operates aircraft designed to have a maximum passenger capacity of more than 60 seats or a maximum payload capacity of more than 18,000 pounds; or (2) conducts operations where one or both terminals of a flight stage are outside the 50 states of the United States, the District of Columbia, the Commonwealth of Puerto Rico and the U.S. Virgin Islands. (same as Large Certified U.S. Air Carriers) ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Large Certified U.S. Air Carriers | An air carrier holding a certificate issued under 49 U.S.C.41102, as amended, that: (1) Operates aircraft designed to have a maximum passenger capacity of more than 60 seats or a maximum payload capacity of more than 18,000 pounds; or (2) conducts operations where one or both terminals of a flight stage are outside the 50 states of the United States, the District of Columbia, the Commonwealth of Puerto Rico and the U.S. Virgin Islands. (same as Large Certificated Air Carrier) ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Late Flight | A flight arriving or departing 15 minutes or more after the scheduled time. ( Airline On-Time Performance Data ) |
| Lodging | A temporary place to stay (e.g. motel, cabin, domitory, etc). ( American Travel Survey ) |
| Maintenance Expense | All expenses, both direct and indirect, specifically identifiable with the repair and upkeep of property and equipment. ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Market (Using DB1B Data) | A Market in DB1B data is created by a trip break. Trip Breaks are points in the itinerary at which a passenger is assumed to have stopped for a reason other than changing planes. For example: an itinerary BOS-LAS-BOS would have two markets BOS-LAS and LAS-BOS. The trip break occurred at LAS. ( Airline Origin and Destination Survey (DB1B) ) |
| Market (Using T100 Data) | Market data are passenger, freight, and/or mail that enplane and deplane between two specific points, while the flight number remains the same. If the flight number changes a new market begins. For more details go to Frequently Asked Questions. ( Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers ) |
| Marketing Carrier | An air carrier that issued a flight reservation or ticket under a codeshare agreement. ( Airline Origin and Destination Survey (DB1B) ) |
| Metropolitan Area | A large population nucleus, together with adjacent communities that have a high degree of economic and social integration with that nucleus. A metropolitan area (MA) may be defined around two or more nuclei. The MA is a statistical standard designated and defined by the Office of Management and Budget, following a set of official published standards. An MA comprises one or more counties except in New England where MAs are composed of cities and towns rather than whole counties. Classifications of MAs include metropolitan statistical area (MSA) and consolidated metropolitan statistical area (CMSA) that is divided into primary metropolitan statistical areas (PMSA). ( American Travel Survey ) |
| Metropolitan Statistical Area | A relatively freestanding metropolitan area (MA) that is not closely associated with other MAs. These areas typically are surrounded by nonmetropolitan counties. A metropolitan statistical area (MSA) comprises one or more counties except in New England where MSAs are composed of cities and towns rather than whole counties. ( American Travel Survey ) |
| Mid Atlantic Division | New York, New Jersey, Pennsylvania ( American Travel Survey ) |
| Mile | A statute mile (5,280 feet). All mileage computations are based on statute miles. ( Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers ) |
| Mode Of Transportation | The type of transportation used for moving a shipment to its domestic destination. For exports, the domestic destination is the port of exit. ( Commodity Flow Survey ) |
| Mountain Division | Montana, Idaho, Wyoming, Colorado, New Mexico, Arizona, Utah, Nevada ( American Travel Survey ) |
| Multiple Modes | Parcel, U.S. Postal Service or courier shipments or shipments for which two or more of the following modes of transportation were used: private truck, for-hire truck, rail, shallow draft vessel, deep draft vessel, or pipeline. ( Commodity Flow Survey ) |
| New England Division | Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut ( American Travel Survey ) |
| Nights Away From Home | The number of nights spent away from home on one trip, including nights spent at the destination, on stops to and from the destination and on side trips away from the destination. Nights away from home are broken into categories including nights at the destination, nights at stops and side trips, and nights en route. ( American Travel Survey ) |
| Non-Revenue Traffic | Passengers and cargo transported by air for which no renumeration or token service charges are received by the air carrier. Airline employees, officers and directors, or other persons, except for ministers of religon, who are traveling under reduced rate transportation authorized by 49 U.S.C. 41511(a) and 14CFR part 223, as well as travel agents, cargo agents, and tour conductors traveling at reduced fares are also considered nonrevenue traffic. ( Air Carrier Summary Data ) |
| Non-Scheduled Service | Revenue flights, such as charter flights, that are not operated in regular scheduled service. ( Small Air Carrier Statistics, Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Nonoperating Income And Expense | Interest income and expense, unusual foreign exchange gains or losses, and capital gains or losses in disposition of property and equipment. ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| OAG | Official Airline Guide ( Aviation Support Tables ) |
| Operating Carrier | An air carrier engaged directly in the operation of aircraft in passenger air transportation. ( Airline Origin and Destination Survey (DB1B) ) |
| Operating Expenses | Expenses incurred in the performance of air transportation, based on overall operating revenues and overall operating expenses. Does not include nonoperating income and expenses, nonrecurring items, or income tax. ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Operating Region | One of six regions used to describe the region where an air carrier operates: International (Atlantic, Pacific, and Latin America), System (all regions covered by an air carrier), Domestic (U.S.), Atlantic, Pacific, Latin America. For those carriers with international flights, the operating region is determined by where its flights leave and enter the U.S. (i.e. across the Atlantic, Pacific or Gulf/Mexico) ( Aviation Support Tables ) |
| Operating Revenues | Revenues from the performance of air transportation and related incidental services. Includes (1) transport revenue from the carriage of all classes of traffic in scheduled and nonscheduled services, and (2) nontransport revenues consisting of Federal subsidy (where applicable) and revenues for services related to air transportation. ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Origin State FIPS | The FIPS code for the origin state. (see FIPS) ( Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers ) |
| Other And Unknown Modes | Shipments for which modes were not reported, or were reported by the respondent as Other or Unknown. ( Commodity Flow Survey ) |
| Other Multiple Modes | Shipments using any other mode combinations not specifically listed in the Commodity Flow Survey tables. ( Commodity Flow Survey ) |
| Other Transport-Related Revenue | Revenues from services such as in-flight sales, rentals and sales or services, supplies and parts. ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Pacific Division | Washington, Oregon, California, Alaska, Hawaii ( American Travel Survey ) |
| Parcel Delivery/Courier/U.S. Postal Service | Delivery services, parcels, packages, and other small shipments that typically weigh less than 100 pounds. Includes bus parcel delivery service. ( Commodity Flow Survey ) |
| Passenger | Any person on board a flight who is not a member of the flight or cabin crew. ( Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers ) |
| Passenger Mile | One passenger transported one statute mile. Total passenger miles are computed by summation of the products of the aircraft miles flown on each inter-airport flight stage multiplied by the number of passengers carried on that flight stage. ( Air Carrier Summary Data ) |
| Passenger Revenues | Revenues from the air transportation of passengers. ( Airline On-Time Performance Data ) |
| Passenger Service Expenses | Cost of activities contributing to the comfort, safety, and convenience of passengers while in flight or when flights are interrupted. Includes salaries and expenses of flight attendants and passenger food expenses. ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Payload | Equal to the certificated takeoff weight of an aircraft, less the empty weight, less all justifiable aircraft equipment, and less the operating load (consisting of minimum fuel load, oil, flight crew, steward's supplies, etc). ( Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers ) |
| Person-Miles | An estimate of the aggregate distances traveled by all persons who took a trip and is based on the estimated transportation network miles traveled on the trip. ( American Travel Survey ) |
| Person-Nights | The aggregate number of nights spent by all persons on a trip. For example, if two people took a trip that involved five nights away from home, a total of 10 person-nights would be counted for that trip. ( American Travel Survey ) |
| Personal Use Vehicle Trip | Any trip in which the main type of transportation used to cover most of the miles on that trip was auto, pickup truck, van, other truck, rental car, truck or van, recreational vehicle, or motorcycle. ( American Travel Survey ) |
| Pipeline | Movements of oil, petroleum, gas, slurry, etc., through pipelines that extend to other establishments or locations beyond the shipper's establishment. Aqueducts for the movement of water are not included. ( Commodity Flow Survey ) |
| Pleasure Trip | Any trip where the purpose of the trip is given as to visit friends or relatives, rest or relaxation, school activities, sightseeing, entertainment, outdoor recreation, or shopping. ( American Travel Survey ) |
| Primary Metropolitan Statistical Area (PMSA) | A component area of a consolidated metropolitan statistical area (CMSA). Any metropolitan area having more than one million persons may be divided in to subareas called primary metropolitan statistical areas (PSMAs) based on criteria established by the Office of Management and Budget. PMSAs consist of a large urbanized county or cluster of counties that demonstrates very strong internal economic and social links, in addition to close ties to other portions of the larger area. In New England, PMSAs are composed of cities and towns rather than whole counties. ( American Travel Survey ) |
| Principal Means Of Transportation | The means of transportation used for most of the distance from the origin to the destination. Respondents were asked to report separately the major type of transportation used for going and for returning on the trip. If a different means was used for going and returning, the major means of transportation was the mode used on the going trip. ( American Travel Survey ) |
| Private Truck | Trucks operated by a temporary or permanent employee of an establishment or the buyer/receiver of the shipment. ( Commodity Flow Survey ) |
| Promotion And Sales Expenses | Cost incurred in promoting the use of air transportation generally and creating a public preference for the services of particular air carriers. Includes the functions of selling, advertising, and publicity, space reservations, and developing tarrifs and flight schedules for publication. ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Race | The race with which the respondent and other household members most closely identify. Choices include: White, Black, American Indian, Eskimo, Or Aleut, Asian Or Pacific Islander, and Other Race. ( American Travel Survey ) |
| Railroad | Includes common carriers (for-hire carriers that hold themselves out to serve the general public at reasonable rates and without discrimination) and private railroads (carriers not open to the public at large). ( Commodity Flow Survey ) |
| Ramp To Ramp Time | The time computed from the moment an aircraft first moves under its own power for purposes of flight, until it comes to rest at the next point of landing. ( Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers ) |
| Reporting Carrier | The carrier that submitted data to the Office of Airline Information for a given passenger segment. ( Airline Origin and Destination Survey (DB1B) ) |
| Respondent | The person who reported the information about the trip. Survey procedures specified that persons 15 years old or older be interviewed personally about any trips they took during the reference period. Household trips taken by more than one household member were reported by the first member interviewed who went on the trip. Trips taken by household members under 15 years of age were reported by a knowledgeable adult household member. Procedures were established to ensure that a household trip taken by more than one household member was reported only once with an indication of each of the household members on the trip. ( American Travel Survey ) |
| Revenue | Pertaining to activities for which remuneration is received by the carrier. ( Air Carrier Statistics - All Carriers, Small Air Carrier Statistics, Air Carrier Summary Data, Air Carrier Statistics - U.S. Carriers ) |
| Revenue Passenger Mile | One revenue passenger transported one mile in revenue service. Revenue passenger miles are computed by summation of the products of the revenue aircraft miles on each interairport segment multiplied by the number of revenue passengers carried on that segment. ( Small Air Carrier Statistics ) |
| Revenue Ton Mile | One revenue ton (2,000 pounds) transported one statute mile. ( Small Air Carrier Statistics ) |
| Round Trip Distance | Estimated transportation network miles traveled from the residence of the household at the time of the trip to the destination and back. Miles are calculated separately from origin to destination and destination to origin and added together to allow for differences in routes traveled each way. ( American Travel Survey ) |
| Scheduled Departure Time | The scheduled time that an aircraft should lift off from the origin airport. ( Airline On-Time Performance Data ) |
| Scheduled Departures | Takeoffs scheduled at an airport, as set forth in published schedules. (same as Departures Scheduled) ( Small Air Carrier Statistics ) |
| Scheduled Service | Transport service operated persuant to published flight schedules, including extra sections and related nonrevenue flights. ( Small Air Carrier Statistics, Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Scheduled Time Of Arrival | The scheduled time that an aircraft should cross a certain point (landing or metering fix). ( Airline On-Time Performance Data ) |
| Seat Mile | The aircraft miles flown in each inter-airport segment multiplied by the number of seats available on that segment for revenue passenger use. ( Small Air Carrier Statistics, Air Carrier Summary Data ) |
| Seats Available | Installed seats in an aircraft (including seats in lounges) exclusive of any seats not offered for sale to the public by the carrier; provided that in no instance shall any seat sold be excluded from the count of available seats. ( Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers ) |
| Segment | A pair of points served or scheduled to be served by a single stage of at least one flight at any given time. ( Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers ) |
| Shallow Draft Vessels | Barges, ships, or ferries operating primarily on rivers and canals; in harbors, the Great Lakes, the Saint Lawrence Seaway; the Intracoastal Waterway, the Inside Passage to Alaska, major bays and inlets; or in the ocean close to the shoreline. ( Commodity Flow Survey ) |
| Shipment | An individual movement of commodities from an establishment to a customer or to another location of the originating company (including a warehouse, distribution center, retail or wholesale outlet). A shipment uses one or more modes of transportation including parcel delivery, U.S. Postal Service, courier, private truck, for-hire truck, rail, water, pipeline, air, and other modes. ( Commodity Flow Survey ) |
| Small Aircraft | Aircraft originally designed to have a maximum passenger capacity of 60 seats or less or a maximum payload capacity of 18,000 pounds or less. ( Small Air Carrier Statistics ) |
| Small Certificated Air Carrier | An air carrier which operates small aircraft, and holds a certificate of public convenience and necessity. ( Small Air Carrier Statistics ) |
| South Atlantic Division | Delaware, Maryland, District of Columbia, Virginia, West Virginia, North Carolina, South Carolina, Georgia, Florida ( American Travel Survey ) |
| Standard Classification Of Transported Goods | A commodity coding system developed jointly by agencies of the United States and Canadian governments based on the Harmonized System to address statistical needs in regard to products transported. (acronym SCTG) ( Commodity Flow Survey ) |
| T-100 | A section of Form 41, which includes non-stop segment and on-flight market data. Air carriers are required to periodically file Form 41 with the Bureau of Transportation Statistics. ( Aviation Support Tables ) |
| Taxi-In Time | The time elapsed between wheels down and arrival at the destination airport gate. ( Airline On-Time Performance Data ) |
| Taxi-Out Time | The time elapsed between departure from the origin airport gate and wheels off. ( Airline On-Time Performance Data ) |
| Ton Mile | One ton (2,000 pounds) transported one statue mile. Ton-miles are computed by multiplying the aircraft miles flown on each inter-airport segment by the number of tons carried on that segment. ( Small Air Carrier Statistics, Air Carrier Summary Data, Commodity Flow Survey ) |
| Tons Shipped | The total weight of an entire shipment. Respondents reported the weight in pounds. Aggregated pounds were converted to short-tons (2,000 pounds). The tons data are displayed in thousands. ( Commodity Flow Survey ) |
| Total Itinerary Yield | Itinerary fare per itinerary miles flown. The itinerary includes all segements of a journey from origin to destination. ( Airline Origin and Destination Survey (DB1B) ) |
| Total Modal Activity | The overall activity (e.g., ton-miles) of a specific mode of transportation, whether used in a single-mode shipment, or as part of a multiple-mode shipment. For example, the total modal activity for private truck is the total ton-miles carried by private truck in single-mode shipments, combined with the total ton-miles carried by private truck in all multiple-mode shipments that include private truck (private truck and for-hire truck, private truck and rail, private truck and air, etc.) ( Commodity Flow Survey ) |
| Track | The actual flight path of an aircraft over the surface of the earth. ( Airline Origin and Destination Survey (DB1B) ) |
| Traffic Related Expenses | Expenses incurred due to traffic solicitor salaries, traffic commissions, passenger food expense, traffic liability insurance, advertising and other promotion and publicity expenses, and the fringe benefit expenses related to all salaries in this classification. ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Transport-Related Expenses | All expense items applicable to the generation of transport-related revenues. ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Transport-Related Revenues | Revenues from the transportation by air of all classes of traffic in scheduled and nonscheduled service. ( Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Travel Party Size | Any of three groups depending on whether household and/or non-household members were on the trip. Travel Party is the total number of household and non-household members on the trip. Household Travel Party is the total number of household members on the trip. Non-Household Travel Party is the total number of non-household members on the trip. ( American Travel Survey ) |
| Travel Party Type | Any of eight categories describing the number of adults and children in the group. ( American Travel Survey ) |
| Trip | Each time a person goes to a place at least 100 miles away from home and returns. Respondents were asked to report trips of 75 miles or more as a means of reducing possible failure in reporting trips of 100 miles or more due to a misconception by the respondent of the actual miles traveled. Trips subsequently calculated to be less than 100 miles were excluded from the estimates. A household trip refers to a trip in which one or more members of a household traveled together. A person trip refers to a trip taken by an individual. For example, if three persons from the same household go together on a trip, the trip is counted as one household trip and three person trips. If persons goes alone on two trips, the trips are counted as two household trips and two person trips. ( American Travel Survey ) |
| Trip Break | Trip Breaks are points in the itinerary at which a passenger is assumed to have stopped for a reason other than changing planes. A break in the passenger's trip creates a market. For example: An itinerary BOS-LAS-BOS would have two markets BOS-LAS and LAS-BOS. The trip break occurred at LAS. ( Airline Origin and Destination Survey (DB1B) ) |
| Truck | Shipments using for-hire truck only, private truck only, or a combination of for-hire truck and private truck. ( Commodity Flow Survey ) |
| USPS Codes | United States Postal Service (USPS) codes for States are used in all American Travel Survey (ATS) data products. The codes are two-character alphabetic abbreviations. These codes are the same as the FIPS two-character alphabetic abbreviations. ( American Travel Survey ) |
| Unique Carrier | Unique Carrier Code. It is the Carrier Code most recently used by a carrier. A numeric suffix is used to distinguish duplicate codes, for example, PA, PA (1), PA (2). Use this field to perform analysis of data reported by one and only one carrier. ( Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers, Air Carrier Summary Data, Aviation Support Tables, Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Unique Carrier Entity | Unique Carrier Entity. This field distinguishes entities used by two or more carriers with a numeric suffix, for example, 06038 and 06038 (1). ( Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers, Air Carrier Summary Data, Aviation Support Tables, Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Unique Carrier Name | Unique Carrier Name. It is the name most recently used by a carrier. If two or more carriers have the same most recent name, a numeric suffix is used to distinguish them, for example, Air Caribbean, Air Caribbean (1). ( Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers, Air Carrier Summary Data, Aviation Support Tables, Air Carrier Financial Reports (Form 41 Financial Data) ) |
| Vacation Trip | Not listed as a main purpose of travel for the American Travel Survey. Respondents were asked whether or not a specific trip taken was considered as a vacation trip. Respondents were also asked the main purpose of a trip (e.g. sightseeing, outdoor recreation, entertainment, business, etc). ( American Travel Survey ) |
| Value Of Shipment | The dollar value of the entire shipment. This is defined as the net selling value, f.o.b. plant, exclusive of freight charges, and excise taxes. The value data are displayed in millions of dollars. ( Commodity Flow Survey ) |
| Vehicles | Includes cars, trucks, vans, recreational vehicles (RVs), and motorcycles. The number and type of vehicles owned or available for use by the household. ( American Travel Survey ) |
| Water | Shipments using shallow draft vessel only, deep draft vessel only, or Great Lakes vessel only. Combinations of these modes, such as shallow draft vessel and Great Lakes vessel are included as Other multiple modes. ( Commodity Flow Survey ) |
| Weekend Trip | A trip including an overnight stay on a Friday or a Saturday night. Travelers who stay one or two nights away including a Friday or Saturday night are defined as regular weekend travelers. Those who stay three to five nights away including a Friday and/or Saturday night stay are defined as long weekend travelers. ( American Travel Survey ) |
| West North Central Division | Minnesota, Iowa, Missouri, North Dakota, South Dakota, Nebraska, Kansas ( American Travel Survey ) |
| West South Central Division | Arkansas, Louisiana, Oklahoma, Texas ( American Travel Survey ) |
| World Area Code (WAC) | Numeric codes used to identify geopolitical areas such as countries, states (U.S.), provinces (Canada), and territories or possessions of certain countries. The codes are used within the various data banks maintained by the Office of Airline Information (OAI) and are created by OAI. ( Aviation Support Tables, Air Carrier Statistics - All Carriers, Air Carrier Statistics - U.S. Carriers, Small Air Carrier Statistics, Airline Origin and Destination Survey (DB1B) ) |
