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appropriate, as determined by the City's Traffic Engineer. The applicant would be responsible for submitting a bond to the City's Traffic Division, not to exceed $50,000, for the costs associated with retaining a professional services firm to create a traffic calming report and implementing any warranted measures. Parking Single-family homes Single-family homes are required to have two parking spaces per unit, with at least one of the spaces covered in a garage or carport. Each residence would have a driveway that can accommodate two vehicles and a two-car garage, which would exceed this requirement. There are also 48 on-street parking spaces dispersed throughout the proposed development (18 on-street parking spaces would be provided along the project's Valley Trails Drive frontage and 30 would be provided throughout the new public streets — Streets A-C). The supply of on- and off-street parking spaces would be sufficient to meet the demand of the proposed residential component of the development. Clubhouse Private clubs and lodge halls require one space for each six seats or one space for each 60 square feet of floor area usable for seating if seats are not fixed. The proposed clubhouse has approximately 600 square feet of usable floor area for seating. Therefore, 10 parking spaces are required and 10 parking spaces are proposed. Staff notes that if "Parcel C" is incorporated into Lot 11, as previously recommended by staff, the clubhouse lot might be able to accommodate at least one more parking space. However, such additional land is not required since the parking provided for the clubhouse would meet PMC requirements. In order to promote alternative access to the clubhouse, staff has included a recommended condition of approval that would require bicycle racks be installed on the clubhouse lot. Noise The City's General Plan requires new projects to meet acceptable exterior and interior noise level standards. For single-family residential development, private yard areas excluding front yards cannot exceed 60 day/night average decibels (dB Ldn) and indoor noise levels cannot exceed 45 dB Ldn. However, the General Plan indicates that all residential areas may not be able to meet the outdoor goal due to economic or aesthetic considerations (e.g., the desire to not have large sound walls fronting major streets). This goal should generally be applied where outdoor use is a major consideration (e.g., backyards in single-family housing developments and common recreation areas in multi-family housing projects). In addition, as required by the California Building Code (CBC), all rooms where windows need to be closed to reach interior noise goals would need to include mechanical ventilation or an air- conditioning unit. The closest noise source to the project site is 1-680, located approximately 570 feet to the west of the project site. Periodically, the City conducts a noise monitoring study to measure noise level changes in Pleasanton. Individual homes within residential areas that are shown to be within the 60 dBA Ldn and greater noise level area may have acceptable noise levels because of the noise reduction buffering effect of other homes, sound walls, berms, etc. located between those homes and nearby roadways. As discussed in the Noise Element of the General Plan, existing noise levels in residential areas near major thoroughfares (i.e., (- Page 16 of 20