Cross-Spectrum Acoustics Inc. (CSA) is a full service noise and vibration consulting firm with DBE certification in over 20 states. Our staff has over 100 years combined experience in the noise and vibration field, with specialties in: •Transit, freight, and high-speed rail •Highways •Construction •Architectural acoustics •Industrial noise •Audio systems CSA takes pride in our ability to help the public understand complex issues related to noise in a simple and straightforward manner. Because noise can be a difficult topic, especially for people without a technical background, CSA works to make it accessible to everyone, while still providing the information needed. CSA has experience on projects ranging from preliminary assessments to environmental impact statements to final design of systems. We have experience with all types of transit modes, including: LRT, BRT, streetcar, heavy rail, commuter rail, intercity and high-speed rail, and freight rail. CSA staff have provided noise and vibration consulting on transit projects throughout the United States. Please feel free to contact us if you have any questions, or would like more information about our services and expertise.