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T RAFFIC I MPACT A NALYSIS S EPTEMBER 2017 C HRIST O UR S AVIOR C ATHOLIC P ARISH S ANTA A NA , O RANGE C OUNTY , C ALIFORNIA P:\DOM1701\doc\Traffic Impact Analysis.docx «09/20/17» 13 Saturday and Sunday, but the gate will remain open for any evening religious classes or community group meetings extending past these times. The northern driveway provides right-in/right-out access on Alton Avenue. This driveway has an existing gate. The northern gate will typically be open from 7:00 a.m. to 9:00 a.m. on days with a morning service and from 4:00 p.m. to 8:30 p.m. during Saturday evening services. On Sundays, the northern gate will be open from 7:30 a.m. to 6:30 p.m. The project is constructing a southern driveway with access to Jaguar Way. A gate is proposed along this driveway that would restrict access to Jaguar Way on weekdays. The southern gate would be open from 7:30 a.m. to 8:30 p.m. on Saturday and from 7:30 a.m. to 6:30 p.m. on Sunday, although this gate may remain open for any evening religious classes or community group meetings extending past these times. While the southern gate is not intended to be open during a typical weekday, individual days of high attendance may necessitate using this gate. Examples include Ash Wednesday and the week before Easter Sunday. Trip Generation Weekday daily, weekday a.m. peak hour, weekday p.m. peak hour, and Sunday peak-hour trips for the existing and proposed Church land use were generated using trip rates contained in the Institute of Transportation Engineers Trip Generation Manual (9th Edition, 2012). However, these trip generation rates appeared to generate fewer trips for the existing Church in the a.m. and p.m. peak hours than observed. Similar to the approach used in the Armstrong Ranch EIR, a.m. peak-hour trip generation was adjusted based on Church service attendance and p.m. peak-hour trip generation was adjusted to account for evening religious classes. The estimate of maximum attendance at evening religious classes is 50 percent higher than originally anticipated in the Armstrong Ranch EIR, so this trip generation has also been increased by 50 percent from the Armstrong Ranch EIR trip generation. The existing morning Church service does not use the entire facility, so a larger facility may not necessarily cause a growth in trip generation. However, this trip generation calculation projects a conservative 20 percent growth in morning service attendance. As Table B indicates, the project is estimated to generate 692 daily trips, 36 a.m. peak-hour trips, and 145 p.m. peak-hour trips. Trip generation during a Sunday Church service is projected to be 557 peak-hour trips. As mentioned above, the Armstrong Ranch EIR analyzed a larger project. When originally analyzed and approved, the Master Plan was anticipated to be a 91,000 sf Church on land currently proposed to contain the 46,305 sf Church use and 42 residential dwelling units. Table C compares the total trip generation for the two projects currently proposed in the Master Plan area to the originally analyzed and approved Master Plan. As Table C shows, fewer trips are generate than originally planned. Trip Distribution and Assignment The project trip distribution is based on existing travel patterns and regional travel utility as well as the Church trip distribution identified in the Armstrong Ranch EIR (June 2002). Gate operations also affect the travel paths available for vehicles. As such, for Sunday services, 23 percent of traffic was distributed west on MacArthur Boulevard, 23 percent was distributed east on MacArthur Boulevard, 5 percent was distributed south on Raitt Street, 17 percent was distributed north on Raitt Street, 20 percent was distributed west on Alton Avenue, and 12 percent was distributed east on Alton Avenue. However, because the southern driveway will be gated and closed on weekdays, weekday 3-64