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Veterans Memorial Senior Center/YMCA Project 23 Addendum #2 City of Redwood City November 2025 Like the original project, a significant traffic noise impact would occur if the modified project were to increase ambient noise levels by three dBA CNEL at surrounding residences. To evaluate potential traffic noise impacts associated with the increase in vehicle trips and the concentration of the trips at the Madison Avenue driveway entrance, a Noise and Vibration Assessment Addendum Memorandum was prepared (which is included in Appendix B) to evaluate increases in traffic noise along Jefferson Avenue, St. Francis Streeet, Madison Avenue, and Valota Road. Under Existing Plus Project Conditions, the modified project would result in an increase in ambient noise levels adjacent to the site that would range from zero to two dBA CNEL during weekdays and weekends. Under Cumulative Plus Project Conditions, the modified project would also result in an increase in ambient noise levels adjacent to the site that would range from zero to two dBA CNEL during weekdays and weekends. This increase in ambient noise levels associated with the modified project would be consistent with the increases in ambient noise levels identified for the original project and less than the three dBA threshold of significance. Therefore, the modified project would not result in any new significant impacts or substantially more severe traffic noise impacts than disclosed in the 2019 EIR. Transportation The operations of transportation facilities have traditionally been described with the term level of service (LOS). LOS describes traffic flow from the driver’s perspective based on factors such as speed, travel time, delay, and freedom to maneuver. Senate Bill 743 (SB 743) was adopted in 2013 and directed the State of California’s Office of Planning and Research (OPR) to look at different metrics for identifying transportation impacts and make corresponding revisions to the CEQA Guidelines. Following several years of draft proposals and related public comments, OPR settled upon daily vehicle miles travelled (VMT) as the preferred metric for assessing passenger vehicle related impacts. OPR issued revised CEQA Guidelines in December 2018 along with a Technical Advisory on Evaluating Transportation Impacts in CEQA to assist practitioners in implementing the CEQA Guidelines to use VMT as the new metric.26 Under the revised CEQA Guidelines (Public Resources Code section 21099, subdivision (b)(3), vehicle LOS can no longer be used as a determinant of significant environmental impacts. Following certification of the 2019 EIR, the City adopted its VMT Policy, which is outlined in the Transportation Analysis Manual that the City adopted in July 2020 which updated the City’s transportation significance criteria from LOS to VMT. Therefore, impacts and mitigation measures from the 2019 EIR associated with automobile delay (i.e., LOS) are not discussed in this Addendum. 26 State of California Governor’s Office of Planning and Research. Technical Advisory on Evaluating Transportation Impacts in CEQA. December 2018. Accessed October 22, 2025. https://lci.ca.gov/docs/20190122-743_Technical_Advisory.pdf. ATTY/RESO.0111/CC RESO CONSIDERING AND APPROVING AN ADDENDUM TO THE FINAL EIR (YMCA PROJECT CEQA) - EXHIBIT A REV: 11-06-25 VR