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

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future traffic volumes on the existing road system further aggravates this congested condition. Developing Bristol Street to its fuU six-lane divided major arterial highway designation will increase capacity and accommodate future traffic needs. This increased capacity will serve to reduce the influence intra- regional traffic has on the local road system by adequately accommodating it on the major arterial highway- Traffic volumes will continue to increase whether or not Bristol Street is improved to a major arterial highway. Without road widening, congestion will continue to grow with its effects being felt over a far larger area. With the widening, Bristol Street will be able to accommodate existing as well as future traffic needs safely and efficiently. Intra- regional traffic would no longer realize any time savings benefit by utilizing the local street system and would find the major arterial highway better suited to their needs. The intrusion of commuter traffic into the residential neighborhoods would therefore be substantially reduced. Widening Bristol Street to a six lane major arterial roadway as designated in the Orange County Master Plan was also recommended in the Bristol Street Corridor Stud- Final Re oo Mohle, Grover & Associates, 1983; and in the Arterial Highway Elcment - Santa Ana Transportation Corridor Stage 11 Alternative Analysis, Parsons Brinkerhoff Quade and Douglas, Inc., 1985. This proposed widening is also in agreement with the recommendation found in the Intercity Liaison Committee - Five -Year Transportation Study Update to 1990 Basmaciyan - Darnell, Inc., 1985. MitiWion Mea,5ure5 The proposed widening of Bristol Street to six through lanes will greatly improve operating conditions along this corridor. The additional mitigation measures mentioned below will further enhance traffic progression by aiding in the reduction of congestion and delays. 1. Provide a 100 foot wide roadway on a 120 foot wide right -of -way from the Santiago Creek to Warner Avenue. 2. Provide intersection lane configurations as shown in Table 21. 3. Prohibit U -turns and provide right -turn overlaps with left -turn phasing at the intersection of Bristol Street with Memory Lane and 17th Street. 4. Provide protected left -tum phasing in all directions of the intersections along Bristol Street at Memory Lane, 17th Street, First Street, Edinger IV -75 75C -210