BPS conducted a research project on the noise mitigation effectiveness of earthen berms as compared to structural noise walls. BPS staff collected data for 46 earthen berm and structural wall locations around Ohio, including noise readings, traffic volumes and speed, environmental conditions, construction costs, and property values. Then the staff performed comparative analyses on the results to determine the mitigation effectiveness and full life cycle costs of the earthen berms and structural walls over time, including construction, right-of-way, and maintenance costs.

Project: Earthen Berm Noise Reduction Analysis
Client: Ohio Department of Transportation