Exhibit 4-3_55A_BRISTOL WIDENING TRAFFIC STUDY

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1 OKSAssociates 4. General Plan Condition (Year 2006) With and Without Widening Future traffic volumes, for the target year 2006, were taken from the Bristol Street Widening Environmental Impact Study report. The Bristol Street widening EIS has assumed that in the year 2006 all roads would be built out to their ultimate widths, as designated on the Orange County General Plan - Master Plan of Arterial Highways Components, County of Orange, Environmental Management Agency, 1982. It has furthermore assumed that the volume of traffic on Bristol Street north of Warner Avenue is consistent with a 1% per year growth rate. Midblock Capacity AnaIysis Table 4 -1 summarizes the projected traffic volumes on each link with the corresponding levels of service with and without widening of Bristol Street. In the future year 2006 without widening, each link of Bristol Street from Memory Lane to Warner Avenue would experience level of service F. Traffic on Bristol Street would be extremely congested and motorists would experience excessive delay. The added capacity which the widening project will provide will greatly aid traffic circulation by reducing congestion and delay and accommodating projected future traffic increases_ As Table 4 -1 indicates, projected traffic volumes on Bristol Street north of Washington Avenue result in undesirable levels of service on several links while those values are above the desired LOS of C. The anticipated volumes can be accommodated on the proposed six -lane divided roadway due to the conservative nature of the capacity values. Motorists may continue to experience delay; however, the length of delay would greatly diminish with roadway widening. Intersection Capacity Analysis An intersection capacity analysis using the ICU methodology has been done for the scenario of future traffic conditions (General Plan, year 2006) with and without the widening project. These results are summarized in Table 4 -2 and 4 -3. Traffic conditions in the year 2006 without the widening project would experience undesirable levels of service along Bristol Street at Warner Avenue (PM peak), Civic Center Drive (PM peak), 1st Street, and the segment north of Washington Avenue up to Memory Lane. With the Bristol Street project widening, all intersections along Bristol Street will be functioning at an acceptable level of service D or better. The ultimate lane configurations on which these analyses are based are shown in Figure 4 -1. IF 28657.P90223x0.Rpr 18 V,