D L Adams Associates is an independent acoustical consulting firm specializing in environmental noise impact assessments, comprehensive sound surveys, noise monitoring, and assessments.

D.L. Adams Associates performed OINR measurements and calculations on several houses that are in proximity to the airport.

D.L. Adams Associates designed the Denver International Airport Voice Paging System for the Main Terminal, Concourses A, B & C, Office Tower, Central Plant, and all tunnels and support spaces

Union Pacific has been building America for more than 150 years and remains a trusted mainstay on America’s landscape; however, heavy rail transport can generate noise that affects nearby residents.  

D.L. Adams aided in assessing the noise impact of renovations to the Unit 1 and 2 fans and motors to improve efficiency and sustainability as part of a larger emissions reduction plan at the Hayden Generating Station under the Colorado Clean Air Clean Jobs Act.

HART, also known as the Honolulu High-Capacity Transit Corridor Project, is an elevated commuter rail system.

Kahuku Wind Farm, located above the hills of Kahuku, Hawaii, is made up of 12 wind turbines and is located above the town of Kahuku on the North Shore of Oahu.