I-880 North Safety Improvements

Oakland
, California

Computer models of future traffic/lane alignment, identification of noise sensitive receivers (including a nearby school), as well as potential construction noise.

SR 84 Expressway

Livermore, California

Long-term noise surveys, modeling of existing roadway/proposed alternatives, traffic noise impacts on residences, and effectiveness of existing noise barriers.

Doyle Drive Reconstruction

San Francisco, California

Groundborne vibration analysis and measurements during reconstruction. Measurements made of existing vibration levels near adjacent historic buildings.

Sister Cities Blvd. Noise Study

S. San Francisco, California

Sound measurements, traffic noise modeling and analysis to determine the need for a westward extension of the existing sound wall.

Crow Canyon Road Sound Wall

Danville, CA

Noise measurements, traffic counts and SoundPlan™ noise model to determine construction noise levels. Compared levels with project criteria and developed funding priorities.

SR 24 Caldecott Tunnel Construction

Oakland, California

Assisted with noise survey coordination and report preparation for a study of traffic noise between SR 13 and I-580 and determined potential sound wall locations.

Embarcadero Central Freeway Reconstruction

San Francisco, California

Noise impact alternatives analysis. Noise survey and modeling with Caltrans SOUND32 Noise Prediction Model. Evaluation/analysis of Caltrans EA/FONSI.

I-238 Reconstruction Noise Study

San Lorenzo, California

Near the BART Dublin/Pleasanton line, identified both BART and highway noise impacts using Caltrans criteria. Designed sound wall using SOUND32 Noise Prediction Model.

SR 92 / I-880 DEIS/DEIR

 Hayward, California

Environmental noise study for highway noise predictions using the Caltrans SOUND32 with TrafficNoiseCAD7. Recommended sound wall designs to comply with Caltrans guidelines.

SR 242 Noise Impact Evaluation

Concord, California

Noise measurements and identification of noise impacts using Caltrans criteria. Design of 8,600ft of sound wall using SOUND32 Noise Prediction Model interfaced to a digitizer.

LA Metro San Fernando Valley Bus Rapid Transit (BRT)

Los Angeles, California

Preliminary engineering design review, including independent analysis of bus noise and soundwall design. Reviewed the EIR/EIS and took measurements of tire noise for buses to evaluate the effectiveness of rubberized asphalt.