Better Information Sharing Could Improve Responses to Washington, D.C. Area Helicopter Noise Concerns

Aircraft Noise: Better Information Sharing Could Improve Responses to Washington, D.C. Area Helicopter Noise Concerns. GAO-21-200: Published: Jan 7, 2021. Publicly Released: Jan 7, 2021. “We were asked to review helicopter noise in the Washington, D.C., area, where numerous flights support government, national security, and medical operations. There were about 88,000 helicopter flights within 30 […]