FAA's Voice Switching and Control System
T-IMTEC-89-6: Published: May 4, 1989. Publicly Released: May 4, 1989.
Additional Materials:
- Full Report:
Contact:
GAO discussed the Federal Aviation Administration's (FAA) progress in developing its Voice Switching and Control System (VSCS), intended to provide voice communications for new controller workstations developed under the FAA Advanced Automation System. GAO noted that: (1) original estimates for VSCS prototype development increased from $67 million to $145 million; (2) total project cost estimates increased from $258 million to over $786 million; (3) prototype developers experienced unanticipated technical difficulties in meeting VSCS requirements, necessitating significant changes in proposed hardware and software; (4) technical difficulties have delayed the estimated date for VSCS implementation from 1986 to 1992; (5) prototype contractors may be striving to meet target dates at the expense of work quality; (6) VSCS development problems could delay Advanced Automation System workstation implementation; and (7) FAA does not plan to complete its testing requirements before awarding a production contract. GAO believes that FAA must complete all necessary testing before awarding the production contract to ensure that VSCS will meet its requirements.
Sep 30, 2020
Supplemental Material For GAO-20-686:
Transit Asset Management: Survey of TAM Program ParticipantsGAO-20-687SP: Published: Sep 30, 2020. Publicly Released: Sep 30, 2020.-
Transit Asset Management:
FTA Should Clarify Performance Data and Develop a Plan to Guide Future Program ImprovementsGAO-20-686: Published: Sep 30, 2020. Publicly Released: Sep 30, 2020.
Sep 8, 2020
-
Airport Funding:
Information on Grandfathered Revenue Diversion and Potential Implications of RepealGAO-20-684: Published: Sep 8, 2020. Publicly Released: Sep 8, 2020. -
Aviation Sanitation:
FDA Could Better Communicate with Airlines to Encourage Voluntary Construction Inspections of Aircraft Galleys and LavatoriesGAO-20-612: Published: Sep 8, 2020. Publicly Released: Sep 8, 2020.
Sep 2, 2020
-
Facial Recognition:
CBP and TSA are Taking Steps to Implement Programs, but CBP Should Address Privacy and System Performance IssuesGAO-20-568: Published: Sep 2, 2020. Publicly Released: Sep 2, 2020.
Aug 20, 2020
-
Aircraft Noise:
Information on a Potential Mandated Transition to Quieter AirplanesGAO-20-661: Published: Aug 20, 2020. Publicly Released: Aug 20, 2020.
Aug 18, 2020
-
Aviation Safety:
Actions Needed to Evaluate Changes to FAA's Enforcement Policy on Safety StandardsGAO-20-642: Published: Aug 18, 2020. Publicly Released: Aug 18, 2020.
Aug 10, 2020
-
Transportation Research:
Additional Actions Could Improve DOT's Internal Collaboration and Reliability of Information on Research ActivitiesGAO-20-622: Published: Aug 10, 2020. Publicly Released: Aug 10, 2020.
Jul 27, 2020
-
Surface Transportation Security:
TSA Has Taken Steps to Improve its Surface Inspector Program, but Lacks Performance TargetsGAO-20-558: Published: Jul 27, 2020. Publicly Released: Jul 27, 2020.
Jul 16, 2020
-
Capital Investment Grants Program:
FTA Should Improve the Effectiveness and Transparency of Its ReviewsGAO-20-512: Published: Jul 16, 2020. Publicly Released: Jul 16, 2020.
Looking for more? Browse all our products here
Explore our Key Issues on Transportation
Explore our other Key Issues here
