摘要: |
The Highway Trust Fund (HTF) was established to finance the construction of the Interstate Highway System. This system, built in partnership with state and local governments over more than 50 years, has become central to transportation in the United States. During this same time period, the federal role in surface transportation programs expanded to include a broader mission. Surface transportation programs have grown in number and complexity, and while most federal surface transportation funds remain dedicated to highway infrastructure and administered by the states, many of these programs now serve additional transportation, environmental, and societal purposes. |