| Terms | Definitions |
|---|
| 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 (ATS) 1995 ) |
| 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 (CFS) ) |
| 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 (Form 41 Traffic)- U.S. Carriers, Air Carrier Statistics (Form 41 Traffic)- All 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 (ATS) 1995 ) |
| Revenue | Pertaining to activities for which remuneration is received by the carrier. ( Air Carrier Statistics (Form 41 Traffic)- All Carriers, Small Air Carrier Statistics (Form 298C Traffic Data), Air Carrier Statistics (Form 41 Traffic)- U.S. Carriers, Air Carrier Summary Data (Form 41 and 298C Summary Data) ) |
| 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 (Form 298C Traffic Data) ) |
| Revenue Ton Mile | One revenue ton (2,000 pounds) transported one statute mile. ( Small Air Carrier Statistics (Form 298C Traffic Data) ) |
| 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 (ATS) 1995 ) |
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