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I• Revised Traffic Impact Study March 27,2008 Proposed CEMEX Mining Site Page 16 8.0—CONCLUSIONS AND RECOMMENDATIONS Generally-accepted traffic engineering principles and methods were employed to estimate the b„ amount of traffic expected to be generated by the Project and to analyze the traffic conditions expected to exist in the future. The conclusion of this traffic impact study is that the existing road network can be mitigated to accommodate the proposed development for opening-year and .. cumulative conditions. The conclusions and recommendations for each study intersection and road segment are presented below. Intersection of SR 33 and I-5 Southbound Ramps The intersection is currently operating at acceptable levels of service and is expected to continue to operate at acceptable levels of service based on the near-term without-Project conditions. Haul ` Route 1 is not expected to create opening-day significant impacts. However, Haul Route 3 is expected to result in an opening-day impact that would require mitigation. The intersection is expected to operate at a level of service E in the year 2025 even without the proposed Project. Haul Route I is not expected to create additional significant impacts in the year 2025. However, Haul Route 3 would exacerbate the cumulative year 2025 impacts to a level of service F. V To mitigate the impacts created by Haul Route 3 on opening day the Project may be conditioned to operate at a maximum annual production of 1.9 million tons while Haul Route 3 is in operation. If the Project is limited to 1.9 million tons per year, the near-term with Project level of service will be C and no significant impacts will occur. To mitigate significant impacts in the cumulative conditions, the Project may be conditioned to eliminate Haul Route 3 after the pending construction of the Bird Road/SR 132 interchange, at which time only Haul Route 1 would be allowable. Intersection of SR 33 and I-5 Northbound Ramps The intersection is currently operating at acceptable levels of service and is expected to continue to 6' operate at acceptable levels of service based on the near-term without-Project conditions. Haul Routes 1 and 3 are not expected to create opening-day significant impacts. ` The intersection is expected to operate at acceptable levels of service in the year 2025 without the proposed Project. Haul Route 1 is not expected to create additional significant impacts in the year 2025. However, Haul Route 3 would create an unacceptable cumulative year 2025 level of service. I h. To mitigate the cumulative 2025 impacts of Haul Route 3, a northbound right-turn lane would be required. As an alternative to mitigating cumulative year 2025 conditions, the Project may be t conditioned to eliminate Haul Route 3 after the pending construction of the Bird Road / SR 132 6. interchange,at which time only Haul Route 1 would be allowable. Intersection of SR 33 and Vernalis Road (Connector to SR 132) The intersection is currently operating at a level of service D, which is typically considered unacceptable to Caltrans. The intersection is expected to continue to operate at a level of service D based on near-term-without-Project conditions. Haul Route 1 is not expected to create new traffic at the intersection and therefore is not considered to impact the intersection. However, Haul Route 3 is expected to result in an opening-day significant impact that would require mitigation. A review of L peak-hour traffic signal warrants suggests that traffic signals are not warranted at the intersection based on existing and near-term-with-Project conditions. L L