Fig. 1

State and Local Spending on Transportation and Water Infrastructure, by Category of Spending, 1956 to 2017 [10] p.16. a Dollar amounts are adjusted to remove the effects of inflation using price indexes for government spending that measure the prices of goods and services consumed by governments, including materials and other inputs used to operate and maintain transportation and water infrastructure. b Dollar amounts are adjusted to remove the effects of inflation using price indexes for government spending that measure the prices of materials and other inputs used to build transportation and water infrastructure