2014-028 - Approving General Plan Amendement No. 2014-01

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City of Santa Ana -Park View at Town and Country Manor Draft EIR Transportation and Traffic Ramp Queuing Analysis Ramp queuing analysis was conducted by KHA for the following ramp intersections: • SR -22 westbound off -ramp at La Veta Avenue • SR -22 eastbound off -ramp at Town & Country Road • I -5 southbound off -ramp at Main Street • I -5 northbound off -ramp at Main Street Peak hour ramp volumes were obtained through the turning movement count program conducted for the Traffic Impact Study at each of these intersections. Ramp queuing analyses were conducted using the Traffix software, using HCM 2000 operational methodology. The results of the analysis are expressed in terms of length of queue in feet, for each peak hour, as discussed in the preceding paragraph. Freeway Weaving Analysis Methodology Freeway weaving analysis is conducted to evaluate the interaction of vehicles changing lanes to enter and to exit the freeway within a distance of 2,500 feet or less. Weaving analysis results are expressed in terms of density, which measures the number of passenger cars per lane mile (pc /mi /In) through the weave area on the freeway. The target Level of Service (LOS) for freeway mainline segments is the transition between LOS C and LOS D, which is a density of 28 pc /mi/ln. If the existing density exceeds the target LOS, the existing Level of Service is to be maintained. Freeway Weaving Analysis Freeway weaving analysis was conducted on the Garden Grove (SR -22) Freeway between the I- 5/ SR -57 interchange and Glassell Street. On -ramp and off -ramp volumes were obtained either from the turning movement count program conducted for the project Traffic Impact Study, or from the Caltrans website. Freeway weaving analyses were conducted using the HCS+ software, operational methodology. The results of the analysis are expressed in terms of vehicular density in each peak hour, in each direction, as discussed in the preceding paragraph. Existing Traffic Conditions - Roadway and Intersection Operation Existing morning and evening peak hour turning movement counts were obtained from the City Place Sky Lofts Traffic Impact Study (P &D Consultants 2007) by KHA. The counts were taken in April 2007 at the study intersections during the morning (7:00 AM to 9:00 AM) and evening (4:00 PM to 6:00 PM) peak periods. Daily traffic counts at the study roadway segments were also taken in the same period. Use of these counts was approved by the City of Santa Ana and City of Orange staff. Copies of the count data forms are provided in Appendix E. Existing daily traffic operations on the study roadway segment locations are shown in Table 4.6 -5. All locations are operating at an acceptable LOS D or better. Michael Brandman Associates 4.6 -9 H\Cl t(PN- Rnb327b32]003MMVB2]0030 Sec01 Tmspo md¢