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construction of this related project occur at the same time as the proposed Project. Only receptors located in the immediate vicinity of each construction site would be potentially impacted by each development. As such, cumulative impacts associated with groundbome vibration from construction activities would not be cumulatively considerable and would be less than significant. Additionally, cumulative traffic -generated noise impacts have been assessed based on the contribution of the proposed Project in the Project opening year (2020) and the year 2040 cumulative base traffic volumes on the roadway segments in the Project vicinity. The noise levels associated with these traffic volumes with the proposed Project would increase local noise levels by a maximum of 0.3 dBA CNEL, which is lower than 5 dBA, cumulative impact threshold for traffic noise. For the reasons detailed in the DEIR, the Project's cumulative effects relating to noise would not be cumulatively considerable when considered with past, current, and future probable projects. (DEIR, pp. 4.8-24 through 4.8-25.) 9.17.11 Population and Housing The Project's portion of the cumulative increase in residential units is 9.9 percent, and the remainder of the cumulative projects would generate over 90 percent of the cumulative increase. Thus, the Project's contribution to the cumulative growth in housing is limited. Additionally, the total cumulative housing growth from all of the cumulative projects identified in the DEIR would equal 7.4 percent, which is consistent with SCAG growth estimates that anticipate an 8.4 percent increase. Thus, cumulative impacts related to population and housing would be less than significant. Furthermore, the cumulative addition of housing within the Santa Ana and City of Orange N. Main Street corridor area would have a favorable effect on the jobs -housing balance, which could reduce environmental effects of long commute trips, such as air quality and greenhouse gas emissions. For these reasons that are detailed in the DEIR, the Project's cumulative effects relating to population and housing would not be cumulatively considerable when considered with past, current, and future probable projects. (DEIR, pp. 4.9-10.) 9.17.12 Public Services and Recreation Fire Protection Fire protection service is provided by Orange County Fire Authority (OCFA) staffed Fire Stations that are owned by the City of Santa Ana. There are several proposed projects within Santa Ana in the Project vicinity that would combine to generate additional demands for OCFA services. Like the proposed Project, the related projects would be reviewed by City and OCFA staff prior to permit approval and would be required to implement fire protection design features per California building and fire code regulations that would reduce potential fire hazards. Cumulative increased demands for services would also be offset by the City of Santa Ana fire facilities fee that is required for each development project. As detailed in DEIR Section 4.11, Transportation and Traffic, the Project would not result in cumulative traffic impacts in both years 2020 and 2040. The roadway segments and intersections near the Project site and Fire Stations 70 and 71 would continue to operate at satisfactory LOS. Therefore, the vehicular trips generated by operation of the proposed Project would not result in a substantial increase in emergency Resolution No. _ Certification of the Magnolia at the Park EIR 75E-93 Page 55 of 71