EXHIBIT 4-1_55A_BRISTOL WIDENING EIS-EIR

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traffic was assigned to the nearest open street in the general direction of original travel. The yellow school crosswalk markings on the north leg of Bristol Street at St. Andrews Place will be removed in conjunction with the traffic signal installation at Glenwood Place. Pedestrians will be directed to use the W signalized intersection as a safer crossing location. The traffic signal at the Bristol Street /Glenwood Place intersection is currently under construction. Left turn and through maneuvers can be made more easily and safely from signal controlled intersections than from adjoining minor streets that are stop controlled. Traffic volumes are therefore expected to be attracted to Glenwood Place from adjoining minor streets. An ICU analysis was performed projecting anticipated peak hour turning movements for this intersection. In no situation will motorists wishing to cross Bristol Street be inconvenienced more than two blocks (800 feet between Memory Lane and First Street and 1,500 feet between First Street and Warner Avenue). Counts indicated that „,p straight across moves were very light at most non - signalized intersections. The additional left and U -turn movements at median breaks which result from w the altered circulation pattern were also taken into account in estimations for left turn storage lengths and left turn phasing recommendations. These recommendations are discussed in greater detail in following portions of the text. In conjunction with the raised median, the City of Santa Ana is considering the closure of 10 minor street closures at their intersection with Bristol Street through the use of cul -de -sacs (see Figures 20A and 20B, following). The impact which minor street cul -de -sacs would have on adjoining signalized intersections was also evaluated. Traffic volumes entering or exiting minor streets where redistributed and ICU calculations reevaluated. These results are also shown in Table 5 in Section I (page I -18). Minor street cul -de -sacs will impact traffic operating conditions at adjoining signalized intersections. Traffic access to and from Bristol Street were redistributed from cul -de -sac streets to adjacent intersections in a manner similar to that which was used in the medians. This redistributed traffic resulted in slightly higher V/C ratios at many intersections. In most cases however, the levels of service associated with these higher V/C ratios remain unchanged. Minor street cul -de -sacs can aid traffic progression along Bristol Street by concentrating cross street traffic movements at adjacent intersections that N -64