This report discusses the nature of investment in public transportation capital investments and operations in the United States, the ways in which that investment affects the economy, and the additional impacts of public transportation investments and services on economic growth in the United States. This topic has been examined in a series of past reports, including a widely circulated APTA report published ten years ago (Public Transportation and the Nation’s Economy: A Quantitative Analysis of Public Transportation’s Economic Impact, Cambridge Systematics and Economic Development Research Group, 1999). However, the nature of public transportation investment changes over.