Planning Commission meeting agenda packet 7-9-25

City of Pleasanton—Vineyard Avenue Residential Project 15183 Consistency Checklist Consistency Checklist 135 property line. If potential noise impacts are identified, then mitigation must also be identified. The Housing Element Update FEIR concluded that compliance with the goals, policies, and programs in the General Pan and implementation of MM NOI-1 would ensure that stationary source noise impacts generated by future development projects on the potential sites for housing would be reduced to less than significant. Proposed Project Analysis and Conclusion Project Construction The transport of workers, construction equipment, and materials to the project site would incrementally increase noise levels on access roads leading to the site. Because workers and construction equipment would use existing routes, noise from passing trucks would be similar to existing vehicle- generated noise on the local roadways. Typically, a doubling of the Average Daily Traffic (ADT) hourly volumes on a roadway segment is required in order to result in an increase of three dBA in traffic noise levels, which is the lowest change that can be perceptible to the human ear in outdoor environments. Project-related construction trips would not be expected to double the hourly traffic volumes along any roadway segment in the project vicinity. As such, short-term construction-related noise impacts associated with worker commute and equipment transport to the project site would not exceed applicable significance thresholds. The second type of short-term noise impact is related to noise generated during construction on the project site. Construction noise levels are rarely steady in nature and often fluctuate based on the type and number of equipment being used at any given time. In addition, at times when large equipment is not operating, noise would be at or near normal ambient levels. Construction is completed in discrete steps, each of which has a unique mix of equipment and noise characteristics. The various sequential phases would change the character of the noise generated on-site and, therefore, the noise levels surrounding the site as construction progresses. Despite the variety in the type and size of construction equipment, similarities in the dominant noise sources and patterns of operation allow construction-related noise ranges to be categorized by work phase. The noisiest phase of construction is generally site grading, which involves the relatively steady use of mobile diesel equipment such as excavators, bulldozers, graders, and compactors. The construction period for the proposed project is estimated to last one year. However, the noisiest period of construction associated with the proposed project that could affect the