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Revised Traffic Impact Study March 27,2008 — Proposed CEMEX Mining Site Page 17 The intersection is expected to operate at a level of service F in the year 2025 even without the proposed Project. Haul Route 1 is not expected to create additional significant impacts in the year 2025. However,Haul Route 3 would contribute to the cumulative year 2025 impacts. To mitigate the impacts created by Haul Route 3 on opening day, all-way stop control would be required. However, all-way stop control should not be installed unless warrants are satisfied after the Project begins operating. Since Haul Route 3 is expected to be an alternate route, it is unlikely _ that warrants for all-way stop control will be met on a long-term basis. Therefore, this impact may be considered adverse but not significant. To mitigate the cumulative impacts with Haul Route 3 in the year 2025, all-way stop control with — construction of a westbound left-tum lane is expected to be required. As an alternative to mitigating cumulative year 2025 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 Bird Road and SR 132 _ The intersection is currently operating at unacceptable levels of service. Construction of the pending interchange appears to be warranted and is expected to mitigate the operation of the intersection to acceptable levels of service through the year 2025. The Project may be required to contribute an — equitable share of the cost of the interchange or pay established development fees. Intersection of Koster Road and SR 132 The intersection is currently operating at unacceptable levels of service. Neither of the proposed haul routes will utilize Koster Road at this intersection. Therefore, the Project will not create new turning movements and will only result in new through movements on SR 132. Project-specific _ significant impacts are not identified at the intersection. Intersection of SR 132 and Vernalis Road (Connector to SR 33) The analyses indicate that the intersection is currently operating at a level of service F. The existing substandard level of service is primarily a result of the difficulty experienced by vehicles attempting to tum left across traffic on SR 132. The proposed haul routes do not propose left turns at the _ intersection. Haul Route 1 will result only in additional through movements on SR 132 and Haul Route 3 will result only in right-tum movements and through movements at the intersection. Therefore, Project-specific significant impacts are not identified. _ Intersection of Welty Road and SR 132 The analyses indicate that the intersection is currently operating at a level of service F. The existing substandard level of service is primarily a result of the difficulty experienced by vehicles attempting _ to tum left across traffic on SR 132. Haul Route 1 will result only in additional through movements on SR 132 and Haul Route 3 will result only in right-turn movements and through movements at the intersection. Therefore,Project-specific significant impacts are not identified. Intersection of McCracken Road and SR 132 The analyses indicate that the intersection is currently operating at a level of service F. The existing — substandard level of service is primarily a result of the difficulty experienced by vehicles attempting to tum left or proceed through across traffic on SR 132. The proposed Project will result only in additional through movements on SR 132. Therefore, Project-specific significant impacts are not identified.