The sound barriers will lower highway noise for both the Aspinwall Borough and O’Hara Township sides of the roadway in neighborhoods within the scope of the Route 28 project, according to Mark ...

Meriden residents living near I-691 and I-91 suffer intolerable noise from highway construction and urge officials to help ...

A Carnegie Mellon University grad is behind the successful flight earlier this week of the first independently developed jet ...

Boom's Supersonic XB-1 jet became the “world’s first independently developed supersonic jet” to break the sound barrier ...

The made-in-Canada barriers are designed to improve highway aesthetics, while offering a noise reduction coefficient of up to 0.7 and emissions-free electricity production. Both transparent and ...

Alavi is working with the Pennsylvania Department of Transportation and Pennsylvania Turnpike Commission, through the Pitt IRISE Consortium, to build roadways and highway sound barriers in a ...