Rail / Transit

Tasks such as: groundborne vibration from rail vehicles at-grade, on aerial structures and ballast and tie tracks; as well as trackbed force spectra for future car prototypes.

MARTA System-wide Acoustical and Vibration Consulting Since 1973

Atlanta, Georgia

Noise and vibration for Tunnel and Line segments, EIR/EIS, prediction of airborne noise impacts from train operations, and evaluation of groundborne noise and vibration.

Silicon Valley BART Extension


Environmental noise and vibration impact analysis for proposed 47-mile high speed rail corridor.

California HSR Caltrain Corridor

San Francisco-San Jose, California

Noise and vibration consulting services for all BART extensions (PAX, DPX, CSX, WSX, SFO).

BART Extensions Program

San Francisco, California

Groundborne noise and vibration impacts associated with operating commuter trains in subway tunnels, then worked with design team to develop control measures.

NYMTA/LIRR East Side Access

New York, New York

Noise and vibration impact evaluation and control during the DB phase for 3 EMU rail corridors totaling 34 miles in length.

RTS Eagle P3 Rail Corridors

Denver, Colorado

Vibration propagation, groundborne noise/vibration prediction, and track noise/vibration recommendations.

Sound Transit Northgate Link LRT

Seattle, Washington

Review of wheel/rail noise control procedures on narrow and standard gauge tracks, as well as assessment of wheel squeal, rail fastener stiffness, and wheel/rail contact conditions.

Queensland Rail


Responsible for airborne and structure-borne noise analysis and control for trains traveling at up to 180mph through station.

Taoyuan Station – Taiwan HSR

Taiwan, PRC

Groundborne noise and vibration study for proposed subway line.

TTC Eglinton Crosstown LRT

Toronto, Canada

Vibration impact analysis. Conducted vibration propagation measurements to model groundborne noise/vibration levels inside surrounding buildings.

San Francisco MTA Central Subway

San Francisco, California

Noise/vibration impact evaluation and control for a 1.9-mile LRT subway. Acoustical/noise control design for two underground stations.

LA Metro Gold Line Eastside Extension

Los Angeles, California