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the improvements recommended in the DEIR for each such intersection were constructed. The project alone does not cause the impacts in question. Rather, such impacts will be caused with or without the project. The project will therefore be required to contribute its fair share of the cost of the relevant improvements by paying the applicable fees for the project under the Regional Transportation Improvement Fee ("RTIF") program at the time of building permit applications. Except where otherwise noted, the recommended improvements for the mitigation of these impacted intersections have been programmed for inclusion and construction under the RTIF program. However, the County, as Lead Agency, does not have jurisdiction over these improvements, and there are no other feasible mitigation measures apart from the payment of mitigation fees that are part of a reasonable, enforceable plan or program that is sufficiently tied to the actual mitigation of the traffic impacts at issue. Because it is uncertain whether full funding will be achieved for construction of these improvements, and, if so, whether and when such improvements will be constructed even with implementation of these mitigation measures, and therefore, whether these improvements will be constructed prior to project build out, these impacts will be significant and unavoidable even with implementation of the relevant mitigation measures. The project's impact to traffic has been identified as a significant and unavoidable impact. Noise Noise will increase at the existing Union Pacific Intermodal Facility due to changes in operations associated with the project, primarily the increase in the number of lifts occurring per year. Three types of noise measurements were conducted: long-term, short-term, and facility generated events. Operational noise changes can be subdivided into three main sub-categories: a. Yard operations such as cranes lifting containers, etc. b. Increases in the number of trucks entering and leaving the facility, which in tum will result in more trucks driving along the main access roads such as Roth Road to the west and Airport Way/French Camp Road to the east. c. Increases in the in the number of trains, which could increase the number of horn and wheel/rail noise and vibration events at sensitive receivers adjacent to the tracks. Project-related construction noise will not result in a significant impact at existing noise-sensitive receivers. However, project-related noise exposure to the residential uses are expected to be in excess of the maximum 45 dB nighttime noise criterion in all future conditions, specifically at the noise-sensitive residential uses southeast of the facility and residential uses southwest of the facility. Mitigation Measure NOISE-1a will reduce truck rebound impact noise by removing speed bumps and by posting large, clearly visible signs requiring drivers to observe maximum allowable speeds. In addition, the application will be required to install radar-operated or induction-loop operated large electronic speed indicator signs with rapidly flashing alerts in case of speed violations to clearly signal drivers their current speed. The applicant will be also be required to maintain project site roads so as to reduce truck vibration due to surface roughness, expansion joint gaps, cracks and holes that will otherwise generate impact noise. Mitigation Measure NOISE-1b will reduce container landing impact noise by requiring crane operators to tightly control descent speeds in the last few seconds before impact, including San Joaquin County PA-0900184 & 185\Union Pacific Community Development Page 16