GAO’s reports and testimonies give Congress, federal agencies, and the public timely, fact-based, non-partisan information that can improve government operations and save taxpayers billions of dollars.
Freight railroads account for over 40 percent (by weight) of the nation's freight on a privately owned network that was largely built almost 100 years ago and includes over 76,000 railroad bridges and over 800 tunnels.
For the past several decades, the capacity of the nation's road network has not grown fast enough to keep pace with demand. The increasing congestion is apparent to millions of commuters and freight operators.
With the number of airplane passengers using U.S. airports expected to grow to almost 1 billion by the year 2015, ground access to U.S. airports has become an important factor in the development of our nation's transportation networks.
In recent years, the Washington Metropolitan Area Transit Authority's (WMATA) public transit system has experienced safety and reliability problems, including equipment breakdowns, delays in scheduled service, unprecedented crowding on trains, and accidents and tunnel fires.
This testimony discusses the Federal Aviation Administration's (FAA) efforts to modernize the nation's air traffic control (ATC) system and its relationship to other initiatives to address the escalating crises of insufficient capacity facing the aviation industry.
The Federal Highway Administration (FHWA) developed the state-level version of the Highway Economic Requirements System (HERS-ST) model as an investment-analysis tool for highway planning at the state level.