VOR/DME and LORAN Expansion
RCED-93-211R: Published: Aug 23, 1993. Publicly Released: Aug 23, 1993.
Additional Materials:
- Full Report:
Contact:
GAO reviewed the Federal Aviation Administration's (FAA) expansion plans for Very High Frequency Omnidirectional Range/Distance Measuring Equipment (VOR/DME) and LORAN-C navigation systems, focusing on whether program expansion is necessary, since FAA plans to establish a satellite-based navigation system utilizing the Department of Defense's Global Positioning System (GPS). GAO found that: (1) although FAA has approved funding for and selected 70 new VOR/DME locations, VOR/DME expansion is questionable considering FAA future plans to implement GPS; (2) the existing FAA navigation system is expected to function adequately until GPS is fully operational; (3) LORAN-C expansion is questionable due to GPS rapid technological and procedural developments and the high costs of procuring LORAN-C equipment; and (4) FAA needs to reassess its need to continue VOR/DME and LORAN-C program expansion due to increasing budget constraints.
Apr 9, 2018
-
Rail Transit:
Federal Transit Administration Can Strengthen Safety Oversight by Improving Guidance to StatesGAO-18-310: Published: Mar 20, 2018. Publicly Released: Apr 9, 2018.
Feb 28, 2018
-
Positive Train Control:
Many Commuter Railroads Still Have Significant Additional Implementation Work and Opportunities Exist to Provide Federal AssistanceGAO-18-367T: Published: Mar 1, 2018. Publicly Released: Feb 28, 2018.
Jan 30, 2018
-
Highway and Transit Projects:
Evaluation Guidance Needed for States with National Environmental Policy Act AuthorityGAO-18-222: Published: Jan 30, 2018. Publicly Released: Jan 30, 2018.
Jan 16, 2018
-
Commercial Space Launch Insurance:
FAA Needs to Fully Address Mandated RequirementsGAO-18-57: Published: Jan 16, 2018. Publicly Released: Jan 16, 2018.
Dec 21, 2017
-
Transportation Security Administration:
After Oversight Lapses, Compliance with Policy Governing Special Authority Has Been StrengthenedGAO-18-172: Published: Dec 21, 2017. Publicly Released: Dec 21, 2017.
Dec 14, 2017
-
Transportation Security Administration:
Surface Transportation Inspector Activities Should Align More Closely With Identified RisksGAO-18-180: Published: Dec 14, 2017. Publicly Released: Dec 14, 2017.
Dec 4, 2017
-
Auto Recalls:
NHTSA Should Take Steps to Further Improve the Usability of Its WebsiteGAO-18-127: Published: Dec 4, 2017. Publicly Released: Dec 4, 2017.
Nov 30, 2017
-
Automated Vehicles:
Comprehensive Plan Could Help DOT Address ChallengesGAO-18-132: Published: Nov 30, 2017. Publicly Released: Nov 30, 2017.
Nov 15, 2017
-
Commercial Aviation:
Pilots' and Flight Attendants' Exposure to Noise aboard AircraftGAO-18-109R: Published: Nov 15, 2017. Publicly Released: Nov 15, 2017.
Nov 2, 2017
-
Discretionary Transportation Grants:
DOT Should Take Actions to Improve the Selection of Freight and Highway ProjectsGAO-18-38: Published: Nov 2, 2017. Publicly Released: Nov 2, 2017.
Looking for more? Browse all our products here