Department of Transportation

Key Reports

The overall mission of the Department of Transportation (DOT) is to ensure a fast, safe, efficient, accessible, and convenient transportation system that meets vital national interests and enhances the quality of life of the American people, today and into the future. Such a transportation system is integral to the health of our economy and quality of life.

  • Our nation's vast system of airways, railways, roads, pipelines, transit, and waterways has served this need, yet it is under considerable strain from (1) increasing congestion and (2) the cost to maintain and improve it. In addition, despite considerable federal investment and oversight, transportation-related accidents continue to kill and injure too many of our citizens. In 2008, traffic accidents claimed the lives of more than 37,000 people and injured another 2.3 million. Therefore, enhancing mobility, financing the system, and improving safety are key challenges facing DOT.

    Highlights of GAO-09-435T (PDF)

  • In addition, transitioning from the current ground-based air traffic control system to a satellite-based system is one of the department's most complex undertakings.

    Highlights of GAO-08-1078 (PDF)

  • Finally, as it seeks to fulfill its mission, DOT must address concerns regarding its accountability for program results, energy conservation, and the management of human capital.

    Highlights of GAO-09-435T (PDF), Highlights of GAO-07-921 (PDF)

^ Back to topKey Reports

Highway Trust Fund: Options for Improving Sustainability and Mechanisms to Manage Solvency
GAO-09-845T, June 25, 2009
Summary (HTML)   Highlights Page (PDF)   Full Report (PDF, 18 pages)   Accessible Text
Transportation Programs: Challenges Facing the Department of Transportation and Congress
GAO-09-435T, March 10, 2009
Summary (HTML)   Highlights Page (PDF)   Full Report (PDF, 26 pages)   Accessible Text
National Airspace System: FAA Reauthorization Issues are Critical to System Transformation and Operations
GAO-09-377T, February 11, 2009
Summary (HTML)   Highlights Page (PDF)   Full Report (PDF, 17 pages)   Accessible Text
Next Generation Air Transportation System: Status of Systems Acquisition and the Transition to the Next Generation Air Transportation System
GAO-08-1078, September 11, 2008
Summary (HTML)   Highlights Page (PDF)   Full Report (PDF, 49 pages)   Accessible Text
Traffic Safety Programs: Progress, States' Challenges, and Issues for Reauthorization
GAO-08-990T, July 16, 2008
Summary (HTML)   Highlights Page (PDF)   Full Report (PDF, 35 pages)   Accessible Text
Surface Transportation: Restructured Federal Approach Needed for More Focused, Performance-Based, and Sustainable Programs
GAO-08-400, March 6, 2008
Summary (HTML)   Highlights Page (PDF)   Full Report (PDF, 91 pages)   Accessible Text   Recommendations (HTML)
GAO Contact
portrait of Katherine A. Siggerud

Katherine A. Siggerud

Managing Director, Physical Infrastructure

siggerudk@gao.gov

(202) 512-2834