Featured Projects
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TriMet Warning Bells Light Rail Pedestrian Crossings
Beginning with measurements taken in 2015, ABD Engineering & Design worked with TriMet to conduct sound measurements of warning bells at MAX Light Rail pedestrian crossings. When it was discovered…

Woodburn High School Band and Chorus Rooms
ABD Engineering & Design worked with BBL Architects to develop room acoustics and noise isolation recommendations for the Woodburn High School performing arts classrooms. Band and chorus rooms are often…