Caltrain Centralized Equipment Maintenance and Operations Facility, San Jose, CA

Client: Caltrain, San Carlos, CA

This 20-acre facility is used for train inspections, maintenance, repairs, and train washing. It also includes storage tracks and the central control facility where dispatchers direct and monitor train traffic between the cities of Gilroy and San Francisco. As directed by Caltrain, we conducted long-term noise monitoring at locations around the facility to determine the noise levels of train passbys and to determine which trains and/or tracks generated wheel squeaks. Next we analyzed the wheel squeak frequency spectrum to determine the optimum track treatment to mitigate the squeaks.