CSA - Environmental Noise

CSA’s acoustical consultants are involved in all facets of environmental noise impact assessments. We utilize our extensive cadre of short-term and long-term noise monitoring equipment to quantify noise levels in complex environments, many with multiple noise sources. Noise exposure modeling is used to predict future noise levels for a variety of sources, including vehicular traffic, rail transit, aircraft and industrial sources. The measurements and modeling are used to evaluate noise impacts and to develop mitigation measures to meet applicable standards and to minimize annoyance.

CSA’s environmental noise consulting services include:

- EIR/EIS Input
- Sound Wall and Traffic Noise Barriers
- Noise Monitoring
- Airport Noise
- Housing
- Construction
- Amphitheaters
- Noise Element/Noise Ordinance

Yerba Buena Noise Contours,
San Francisco, California

Illustration: Michael Flynn, Dylan Jhirad, Henry Rollmann

CSA contributed to the on-going planning process for the re-use of Yerba Buena Island. Noise monitoring was conducted to quantify the exposure from the San Francisco - Oakland Bay Bridge. An "Opportunities and Constraints Analysis" summarized the compatibility of housing, hotels and a theme park. This rendering shows noise contours for the project based on calculations and on-site measurements.

Highway Noise Barrier

Illustration: Michael Flynn, Dylan Jhirad, Henry Rollmann

The above illustration shows how acoustical planning for a housing project achieves an outdoor noise goal with a wall and a small setback. Barriers are frequently used where residential property is directly adjacent to freeways and railways.