EXHIBIT 4-1_55A_BRISTOL WIDENING EIS-EIR

Home Browse Search

phasing is effective in reducing left turn accidents but may increase overall intersection delay. Protected left turn analysis was solely based upon volume. It should be noted that this analysis only identifies those locations where left turn phasing may be warranted in the year 2006. Left turn phasing should only be implemented at those signalized locations when left turn warrants have been satisfied. These intersections should therefore be monitored at regular intervals and left turn phasing provided only when these warrants have been met. Protected left -turn phasing is currently provided in all directions at the Bristol Street/Wamer Avenue intersection, a the Bristol Street /17th Street -� intersection, and the Bristol Street /Memory Lane intersection, with the east - west direction being split - phased. Protected left -turn phasing is also provided in the east -west direction at the Bristol Street /First Street intersection and in the north /south direction at the Bristol Street/McFadden Avenue intersection. Based upon volume warrants, protected left -turn phasing should also be considered in the north - south direction on Bristol Street at the Bishop w, Street /Willits Street, First Street, Santa Clara Avenue, Washington Avenue, Civic Center Drive, 5th Street, and Santa Ana Boulevard intersections for the Year 2006. It is the City of Santa Ana's general policy to prohibit parking along all major arterial highways. The prohibition of parking: improves operating conditions along the arterial by increasing capacity and improving traffic safety. Prohibiting parldng at curb side locations along the arterial eliminates the conflict between vehicles entering or exiting the traffic stream from these locations. The roadway capacity is thereby increased through the improvement in traffic flow which is a result of the reduction in vehicle conflicts. The reduction in vehicle conflict also improves traffic safety along the arterial through the reduction in accident potential. Traffic safety is also enhanced by parking prohibition through the retention of sight distance at all intersections and driveway locations along the arterial. Vehicles parked at curb side locations in the vicinity of intersections or adjacent to driveways along the arterial restrict the visibility of motorists trying to enter the traffic stream. Parking prohibition assures that vehicles will not be parked at these locations, thus sight distance is not hindered. Parking prohibition is therefore recommended "along the entire length of Bristol Street from Memory Lane to Warner Avenue. Far -side bus turn -out areas are recommended on Bristol Street at major intersections where bus transfers are expected to occur. Buses which stop in a through lane of travel to drop off or pick up passengers impede the flow of N -72