SU0007300 - Laserfiche WebLink

Home Browse Search

2, Minimize the noise generation of individual truck passbys. This measure would involve utilizing the optimized heavy truck operating procedures identified earlier in this report to minimize the noise of each individual truck passage on East River Road. Munn & Perkins drivers should be educated to utilize the optimized procedures any time they approach or depart the site, and independent drivers should be informed of the noise- control driving procedures prior to commencement of nighttime operations. In addition, signs could be posted along East River Road and at the project site exit notifying drivers of the procedures to follow to minimize truck passby noise. This measure is recommended. 3. Limitation on the number of truck trips per hour: Because project paving contracts specify the amount of material to be supplied to the project site and the frequency at which that material is to arrive, the applicant does not have the ability to dictate the rate at which they will deliver material to the project site, or the hours in which that material will arrive. As a result, the placement of limitations on the number of truck trips per hour arriving and departing the project site would be infeasible and is not recommended. Noise Mitigation for the Receiver Treatment of the receiver would involve options for reducing noise levels within the potentially impacted residences located along East River Road. The following receiver noise mitigation options are offered for consideration: 4. Notification: Notice could be provided to the residences located along East River Road of upcoming projects which would require expanded hours of nighttime operations. The notice should be provided as early as possible so that residents can be advised in advance of the potential for increases in nighttime noise levels. Although this measure would not physically reduce noise levels within residences, it would prevent residents from being surprised by nighttime operations, and would allow them to opportunity to close windows in advance if desired, to achieve maximum acoustical isolation, or take other steps as appropriate for their degree of sensitivity. If such notice is currently being given to residents for early morning start times, an evaluation of the effectiveness of such measures could be performed and improvements made as appropriate. This measor€- is recommended, 5. Upgrades to Building Facades: The noise impact analysis prepared for this project concluded that, with windows closed, noise impacts associated with sleep disturbance or compliance with the County's 45 dB Ldn interior noise level standard were not expected. As a result, providing upgrades to windows or exterior walls would not be necessary if windows were closed, and such upgrades would be ineffective with windows open. As a result. the replacement of windows or upgrades to exterior walls is not recommended for this {project. Environmental Noise Analysis Munn&Perkins Expanded Hours of Operations-San Joaquin County Page 38