| Terms | Definitions |
|---|
| BFR | Biennial Flight Review; a test for pilots required by Federal Aviation Administration. ( Aviation Accidents Database and Synopses ) |
| Barrel | A unit of volume equal to 42 U.S. gallons at 60 Degrees Fahrenheit. ( Pipeline Safety Statistics ) |
| Blood Alcohol Concentration | Is measured as a percentage by weight of alcohol in the blood (grams/deciliter). A positive BAC level (0.01 g/dl and higher) indicates that alcohol was consumed by the person tested. A BAC level of 0.10 g/dl or more indicates that the person was intoxicated. ( Recreational Boating Accident Reporting Database ) |
| The BAC is measured as a percentage by weight of alcohol in the blood (grams/deciliter). A positive BAC level (0.01 g/dl and higher) indicates that alcohol was consumed by the person tested. A BAC level of 0.10 g/dl or more indicates that the person was intoxicated. ( Fatality Analysis Reporting System ) |
| Body Type | A numerical code used to identify a type of automobile (e.g. station wagon, pick-up truck, convertible). These codes may vary depending on the year that the data was collected. ( General Estimates System (NASS/GES) ) |
| Detailed type of motor vehicle within a vehicle type. ( Fatality Analysis Reporting System ) |
| Bow | The front of a vessel. ( Marine Casualty and Pollution Database ) |
| Bulk Cargo | Cargo that is not in packages or containers; shipped loose in the hold of a ship without mark and count. Grain, coal and sulfur are usually bulk freight. ( Foreign Traffic Vessel Entrances and Clearances ) |
| Bulk Carrier Vessel | A vessel designed to accommodate bulk cargo. ( Foreign Traffic Vessel Entrances and Clearances ) |
| Bureau of Economic Analysis U.S. Regions | An area database showing U.S. counties aggregated into economic analysis regions as defined by the BEA. ( Foreign Traffic Vessel Entrances and Clearances ) |
| Burglary | The unlawful entry of a structure to commit a felony or a theft. This includes offenses known locally as burglary (any degree), unlawful entry with intent to commit a larceny or felony, breaking and entering with intent to commit a larceny, housebreaking, safe cracking and all attempts at these offenses. ( National Transit Database ) |
| Bus | A transit mode comprised of rubber tired passenger vehicles operating on fixed routes and schedules over roadways. Vehicles are powered by diesel, gasoline, battery or alternative fuel engines contained within the vehicle. ( National Transit Database ) |
| Large motor vehicles used to carry more than ten passengers, including school buses, inter-city buses, and transit buses. ( Fatality Analysis Reporting System ) |
| Business Trip | Any trip which the main purpose of the trip is given as business, combined business and pleasure or convention. ( American Travel Survey ) |
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