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A. OF iq1. <br />a 'fi IBC VISION PLAN 2o18 TRAFFIC STUDY UPDATE - <br />ALTERNATIVES ANALYSIS <br />'S, Final <br />analysis are presented in Table 3.3. There are 24 intersection deficiencies so compared to the Buildout <br />Cumulative With Update scenario, there is one more intersections that become deficient in the Alternative 2 <br />scenario: #720: Flower at MacArthur Boulevard (Costa Mesa). Further discussion of specific impacts, <br />mitigation, and fair -share cost analysis is addressed in Section 3.7. Based on the Alternative 2 intersection <br />ICU analysis, the following intersections within the study area are forecast to operate at the deficient LOS: <br />• #12: SR-55 Frontage Road SB at Baker Street (Costa Mesa) — AM Peak Hour LOS E with a 0.91 ICU <br />• #720: Flower at MacArthur Boulevard (Costa Mesa) —AM Peak Hour LOS E with a 0.91 ICU* <br />• #98: Von Karman Avenue at Alton Parkway (Irvine) — PM Peak Hour LOS F with a 1.02 ICU <br />• #144: Jamboree Road at 1-405 SB Ramps (Irvine) — AM Peak Hour LOS F with a 1.06 ICU <br />• #145: Jamboree Road at Michelson Drive (Irvine) — PM Peak Hour LOS F with a 1.02 ICU <br />• #188: Harvard Avenue at Michelson Drive (Irvine) — PM Peak Hour LOS E with a 0.91 ICU <br />• #192: California Avenue at University Drive (Irvine) — AM Peak Hour LOS E with a 0.97 ICU <br />• #232: Culver Drive at 1-405 NB Ramps (Irvine) — PM Peak Hour LOS E with a 0.92 ICU <br />• #84: MacArthur Boulevard at Campus Drive (Irvine/Newport Beach) — PM Peak Hour LOS E with a <br />0.94 ICU <br />• #44: Red Hill Avenue at Alton Parkway (Irvine / Santa Ana) — PM Peak Hour LOS E with a 0.97 ICU <br />• #97: Von Karman Avenue/Tustin Ranch Road at Barranca Parkway (Irvine/Tustin) — PM Peak Hour <br />LOS F with a 1.19 ICU <br />• #136: Jamboree Road at Barranca Parkway (Irvine/Tustin) — AM Peak Hour LOS E with a 0.94 ICU and <br />PM Peak Hour LOS E with a 1.11 ICU <br />• #63: Campus Drive at Bristol Street SB (Newport Beach) — AM Peak Hour LOS E with a 0.93 ICU <br />• #543: Bristol at Segerstrom (Santa Ana) —AM Peak Hour LOS E with a 1.00 ICU and PM Peak Hour <br />LOS E with a 0.93 ICU <br />• #544: Bristol Street at MacArthur Boulevard (Santa Ana) — PM Peak Hour LOS E with a 0.92 ICU <br />• #719: Flower at Segerstrom (Santa Ana) — PM Peak Hour LOS E with a 1.02 ICU* <br />• #723: Main Street at Segerstrom (Santa Ana) — AM Peak Hour LOS E with a 1.00 ICU and PM Peak <br />Hour LOS F with a 1.19 ICU <br />• #727: Halladay at Dyer (Santa Ana) — PM Peak Hour LOS E with a 1.00 ICU <br />• #728: Halladay E at Alton Parkway (Santa Ana) — AM Peak Hour LOS F with a 1.12 ICU <br />• #3: Newport Avenue at Edinger Avenue (Tustin) —AM Peak Hour LOS F with a 1.15 ICU <br />• #38: Red Hill Avenue at Walnut Avenue (Tustin) — PM Peak Hour LOS E with a 0.94 ICU <br />• #40: Red Hill Avenue at Edinger Avenue (Tustin) — PM Peak Hour LOS E with a 0.91 ICU <br />• #453: Red Hill Avenue at Valencia Avenue (Tustin) — AM Peak Hour LOS E with a 1.00 ICU <br />• #749: Park Avenue at A Street (Tustin) — PM Peak Hour LOS E with a 0.97 ICU <br />*Denotes impact in Alternative 2 Scenario <br />Figure 3.3 and Figure 3.4 graphically present the AM and PM peak hour intersection ICU for deficient <br />intersections for the Alternative 2 scenario. Appendix A presents detailed ICU worksheets. For shared <br />jurisdictions, the more conservative methodology was utilized. <br />'.: �'''•' ......... ' . <br />Iteris, Inc. 1 66 <br />