Jun 19, 2013

• 

  Airline Mergers

  Issues Raised by the Proposed Merger of American Airlines and US Airways
  GAO-13-403T
• 

  Rail Safety

  Preliminary Observations on Federal Rail Safety Oversight and Positive Train Control Implementation
  GAO-13-679T

Jun 13, 2013

• 

  Transportation Infrastructure

  Limited Improvement in Bridge Conditions over the Past Decade, but Financial Challenges Remain
  GAO-13-713T

Jun 12, 2013

• 

  Federal-Aid Highways

  Improved Guidance Could Enhance States' Use of Life-Cycle Cost Analysis in Pavement Selection
  GAO-13-544

Jun 4, 2013

• 
  FAA Oversight of Procedures and Technologies to Prevent and Mitigate the Effects of Dense, Continuous Smoke in the Cockpit
  GAO-13-551R

May 9, 2013

• 
  Preliminary Results of Work on FAA Facility Conditions and Workplace Safety
  GAO-13-509R

Apr 16, 2013

• 

  Aviation Safety

  FAA Efforts Have Improved Safety, but Challenges Remain in Key Areas
  GAO-13-442T

Apr 8, 2013

• 

  NextGen Air Transportation System

  FAA Has Made Some Progress in Midterm Implementation, but Ongoing Challenges Limit Expected Benefits
  GAO-13-264

Mar 28, 2013

• 

  National Airspace System

  Airport-Centric Development
  GAO-13-261

Mar 14, 2013

• 

  Department of Transportation

  Key Issues and Management Challenges, 2013
  GAO-13-402T

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