Why does Caltrans perform noise and vibration studies?
Highway noise analysis and abatement/mitigation requirements stem from the following state and federal environmental statutes: • California Environmental Quality Act (CEQA) • National Environmental Policy Act (NEPA) • Title 23 United States Code of Federal Regulations, Part 772 “Procedures for Abatement of Highway Traffic Noise and Construction Noise” (23 CFR 772) • Section 216 et seq.