Transportation Economic Trends

Value of Transportation Infrastructure and Other Assets:

Investment in Transportation

The government (public) and private sector invest in transportation infrastructures (referred to as structures in national data on investment) like highways and streets, which have a fixed location, and transportation equipment like motor vehicles, aircraft, and ships. This page discusses public and private transportation investment. Data and discussion on the value of existing transportation infrastructure and equipment (capital stock) are also available.

2022 Year-in-Review

  • In 2022, public and private investment in transportation infrastructure and equipment totaled $403.9 billion, or 7.4 percent of the $5,476.1 billion in investment in all infrastructure, equipment, and intellectual property rights.
  • The 2022 investment in transportation accounted for the second smallest share of total investment (7.4 percent) on record (records begin in 2002). The lowest share on record occurred in 2009 (6.9 percent) and the highest share was in 2015 (11.7 percent).
  • Private investment in transportation equipment accounted for slightly more than half of the $403.9 billion invested in transportation in 2022 ($232.0 billion, or 57.4 percent). Public and private investment in new transportation infrastructure accounted for the remainder ($171.9 billion, or 42.6 percent).
  • Adjusted for inflation, investment in transportation decreased by 0.7 percent from 2021 to 2022; the fourth year of decline since the all-time high reached in 2018. The 2022 level was 22.4 percent below the 2018 level.
  • Declines in public investment in transportation caused total investment in transportation to decline from 2021 to 2022. Public investment in transportation decreased (adjusted for inflation) by 3.2 percent in 2022. This was a smaller decline than in the previous year when public investment in transportation declined 10.4 percent – the largest year-over-year decline on record. The decline in 2022 brought public investment in transportation to its fourth lowest value with records beginning in 2002.
  • Although total investment in transportation declined from 2021 to 2022, private investment in transportation increased by 0.8 percent after adjusting for inflation.

Transportation Investment | Sources of Transportation Investment

Investment in Transportation Assets

Transportation assets represent a small but important share of total public (government) and private investment in the United States. Investment in transportation is spending on transportation infrastructure and equipment (transportation assets) that take more than a year to consume. Because the assets last more than one year, this type of investment is known as a fixed investment.  Fixed investment consists of spending on new construction as well as on additions, alterations, and major structural replacements (but excluding maintenance and repair) to existing construction. It also includes spending on equipment and intellectual property products. Intellectual property products include research and development; software; and entertainment, literary, and artistic originals. The data are not detailed enough to identify transportation-related intellectual property rights, and thus all intellectual property rights fall under non-transportation fixed investment.

Public and Private Investment in Transportation  

Public (government) and private investment estimates include new structures and equipment and exclude maintenance and repair of existing structures or equipment. The estimates also exclude pipeline, which are part of mining infrastructure investment in national data. 

The majority of growth in public and private investment in transportation comes from private investment. Public investment covers only investment in transportation structures, e.g., highways and streets. Nearly all private investment is in transportation equipment.   

Transportation Investment | Sources of Transportation Investment

Sources of Transportation Investment

The national estimates of investment in transportation infrastructure come primarily from the Census Bureau’s Value of Construction Put in Place survey (see figure). The survey covers costs for constructing new structures and making improvements that extend the life or add value to existing structures in the private and public sectors.  
<<Back                                       Next>>              
                  Back to all topics

Recommended citation
U.S. Department of Transportation, Bureau of Transportation Statistics, Transportation Economic Trends, available at

The Bureau of Transportation Statistics, part of the U.S. Department of Transportation, is the preeminent source of statistics on commercial aviation, multimodal freight activity, and transportation economics, and provides context to decision makers and the public for understanding statistics on transportation.
Contact us: 
202-366-DATA(3282) |