75C - PH - BRISTOL EIR FROM WARNER TO ST. ANDREW

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retain median breaks. Circulation in the residential neighborhoods that utilize these streets to access Bristol Street would however, be affected. In all cases the farthest distance residential traffic would be diverted is 1,850 feet. The negative effect of these additional travel lengths would be offset by the reduction in conflict potential realized at their intersections with Bristol Street. Residents on these streets may even find that these cul -de -sacs add to the safety and security of their neighborhood by substantially reducing the flow of traffic on their street. These residents may find the moderate inconvenience to be well worth the added security. The potential benefits to traffic on Bristol Street would be realized by a far larger volume of traffic than would be penalized in surrounding residential neighborhoods by the minor street cul -de -sacs. For these reasons, cul -de -sacs are recommended on 10 minor street legs, at their intersection with Bristol Street, as shown on Figure 20, and are summarized in the Mitigation Measures section. The lane configuration and storage lengths at a signalized intersection directly affect its operational characteristics. Proposed lane configurations and storage lengths were developed based on anticipated future turning movement volumes and theoretical length requirements as shown in the Willdan Traffic Study. These proposed lane configurations and storage length requirements are shown in Table 21. Implementation of these proposals will help to optimize operating efficiency at the respective signalized intersections. Dual left turn lanes were proposed on many of the approaches of the intersections of Bristol Street and other major arterial highways. Major arterial highways, by design, carry larger volumes of traffic. The intersection of two major arterial highways is therefore expected to experience heavy turning movement volumes. Dual left -tum lanes reduce the storage length required by increasing capacity with an additional lane. They were therefore recommended on those intersection approaches where the anticipated left -turn volume is expected to near 300 vehicles /hour. Dual left turn lanes are recom- mended on all approaches of the Bristol Street /17th Street intersection and the Bristol Street /First Street intersection.— Dual left -rum lanes were also recommended on the south and west approaches of the Bristol Street/ Memory Lane intersection and in the north -south direction at the Bristol Street /Warner Avenue intersection. Santa Ana Boulevard is designated as a major arterial highway between Rain Street and 6th Street. Dual left -tum lanes were not, however, proposed at the Bristol Street /Santa Ana Boulevard intersection because turning movement volumes did not justify them. Single left -turn lanes will adequately accommodate projected turning movement volumes in all directions. IV -65 75C -200