National Transportation Statistics
4141
Single-Unit 2-Axle 6-Tire or More Truck Fuel Consumption and Travel (metric)
a Beginning in 1998, the Federal Highway Administration (FHWA) used the Census Bureau's 1997 Vehicle Inventory and Use Survey (VIUS) for its baseline estimate of single-unit 2-axle 6-tire or more trucks. Prior to 1998, the FHWA used the Census Bureau's 1992 Transportation Inventory and Use Survey (TIUS) for its baseline estimates. Therefore, post-1997 data may not be comparable to 1997 and earlier years.
Light Duty Vehicle, Short Wheel Base and Motorcycle Fuel Consumption and Travel (Metric)
KEY: R = revised, U = data are not available.
a 1960 and 1965 data include motorcycles.
Estimated Number of Lives Saved by Occupant Protection, Motorcycle Helmets, and Drinking Age Law
KEY: R = revised.
a Represents all adults and children age 5 and older. Data are for passenger vehicles, which include cars, light trucks, vans, pickups, and utility vehicles. Excludes medium and heavy trucks.
b In 2002, the National Highway Traffic Safety Administration (NHTSA) revised its method for estimating lives saved by safety belts. The previous method included survey data from states with and without belt use laws. The current method relies on police-reported restraint use information for each individual occupant fatality. Also, the estimate...
Safety Belt and Motorcycle Helmet Use
KEY: U = data are not available.
a Seat belt use is as of the Fall each year except in 1999 (December), 2001 (June), 2002 (June), 2003 (June), 2004 (June), 2005 (June). Motorcycle helmet use is as of the Fall each year except in 1996 (January), 2002 (June), 2004 (June), and 2005 (June).
b Beginning in 2003, the National Highway Traffic Safety Administration (NHTSA) no longer computes an overall light truck belt use estimate. Instead, belt use is computed separately for motorists in: (1) vans and sport utility vehicles, and...
Motor Vehicles and Occupants Involved in Fatal Crashes by Posted Speed Limit
KEY: mph = miles per hour; R = revised.
a The "No Statutory Limit/Non-Trafficway or Driveway Access" designation is included in this category.
b The "Not Reported" designation is included in this category.
Motor Vehicle Fatal Crashes by Day of Week, Time of Day, and Weather and Light Conditions
KEY: R = revised.
Number of States with Different Types of Anti-DUI/DWI Legislation in Effect as of January 1 of the Listed Year
KEY: BAC = blood alcohol concentration; DUI = driving under the influence; DWI = driving while intoxicated.
a Per se law makes it illegal in and of itself to drive with an alcohol concentration measured at or above a certain level.
b Includes the District of Columbia in 2000 and 2001.
c Includes the District of Columbia and Puerto Rico beginning in 2003.
d Includes the District of Columbia beginning in 1996. Includes the District of Columbia and Puerto Rico beginning in 2010.
e States that impose additional thresholds for ALR beyond those...