Washington, DC Collected groundborne noise and vibration data during normal operations due to homeowner complaints. Measured rail roughness in the tunnel along the track.
Queensland Rail
Australia Review of noise control procedures on narrow and standard gauge tracks. Assessment of wheel squeal, rail fastener stiffness, and wheel/rail conditions.
San Francisco MTA Central Subway
San Francisco, California Vibration impact analysis for new Muni subway. Conducted vibration propagation measurements to model groundborne noise/vibration levels inside surrounding buildings.