Light trucks include trucks with up to 14,000 pounds gross vehicle weight, including minivans and sport utility vehicles. Prior to the 2003 Benchmark Revision, light trucks were up to 10,000 pounds. The U.S. Bureau of Economic Analysis releases auto and truck sales data, which are used in the preparation of estimates of personal consumption expenditures.

Freight and mail carried by U.S. airlines in all service classes (schedule and nonscheduled) on international flights. A revenue ton-mile is the movement of one ton of revenue cargo carried for one mile. The Bureau of Transportation Statistics air traffic data from U.S. air carriers and international carriers operating within the U.S.

A monthly measure of the volume of services performed by the for-hire transportation sector. The index covers the activities of for-hire freight carriers and for-hire passenger carriers.

National Highway Traffic Safety Administration releases data on highway fatalities in the Fatality Analysis Reporting System (FARS). Data for the most recent year are preliminary estimates.

Gross domestic product is the market value of goods and services produced by labor and property in the United States. The U.S. Bureau of Economic Analysis estimates GDP for each quarter and releases new statistics every month. Quarterly GDP data are seasonally adjusted at annual rates.

The U.S. Census Bureau provides monthly estimates of the total dollar value of construction work done in the United States as part of the Value of Construction Put in Place Survey (VIP). Includes construction related to pavement, lighting, retaining walls, tunnels, bridges, toll/weigh facilities, maintenance buildings, and rest facilities.

An estimate of tonnage transported on navigational channels of the United States. Estimates for the most recent month are based on lock performance management data and will be superseded by actual data as it becomes available. The Waterborne Commerce Statistics Center estimates tonnage based on tonnage reported through the lock performance monitoring system.

Number of trucks entering the United States from Mexico. The Bureau of Transportation of Statistics releases incoming border crossing statistics using data collected at ports of entry by U.S. Customs and Border Protection.

Personal spending on motor vehicles and parts includes spending on new motor vehicles, used vehicle purchases, and vehicle parts and accessories. The Bureau of Economic Analysis estimates personal consumption expenditures, the primary measure of consumer spending on goods and services in the U.S. economy, for each quarter and releases new statistics every month. Quarterly PCE data are seasonally adjusted at annual rates to remove the effects of normal seasonal variation.

The Bureau of Transportation Statistics releases seasonally adjusted air traffic data based on monthly reports from commercial U.S. air carriers.