Appendix H - Transportation Supporting Information COMBINED

Transportation Impact Study for Hidden Canyon Residences & Preserve March 2023 Page | 24 3.7 EXISTING PEAK HOUR TRAFFIC VOLUMES AND LANE CONFIGURATIONS The existing operations of the study intersections were evaluated for the highest one-hour volumes during weekday morning and evening peak periods. Recent turning movement counts for vehicles, bicycles, and pedestrians were conducted during the weekday a.m. peak period (7:00-9:00 a.m.) and p.m. peak period (4:00-6:00 p.m.) at the study intersections on typical weekdays during spring 2019 when local schools were in session. Figures 7 illustrates the existing lane geometry and traffic controls at each of the study intersections. Figure 8 illustrates the existing a.m. and p.m. peak hour vehicle turning movement volumes at the study intersections. Appendix B includes all data sheets and count dates for the collected vehicle, bicycle, and pedestrian counts. 3.8 INTERSECTION LEVEL OF SERVICE ANALYSIS – EXISTING CONDITIONS The existing operations of the study intersections were evaluated for the highest one-hour volume during the weekday morning and evening peak periods. The a.m. and p.m. peak hour turning movement counts were conducted on typical weekdays during the spring of 2019 when local schools were in session. The a.m. and p.m. peak periods observed were between 7:00-10:00 a.m. and 4:00-7:00 p.m. Turning movement count sheets are in Appendix B. Existing intersection lane configurations and peak-hour turning movement volumes were used to calculate the LOS at the study intersections during peak hours. Figure 7 illustrates the existing lane geometry, traffic controls, and turning movement volumes at the study intersections. Existing Conditions intersection LOS worksheets are provided in Appendix C. The results of the LOS analysis for Existing Conditions are summarized in Table 4. All of the study intersections are operating acceptably at LOS D or better during both the a.m. and p.m. peak hours. During the a.m. peak hour the stop-sign controlled intersection of Schaefer Ranch Road & Dublin Canyon Road experiences delay consistent with LOS E on the stop-sign controlled approach (southbound Schaefer Ranch Road approaching Dublin Canyon Road) but overall average delay for the intersection is consistent with LOS A. At the unsignalized study intersections: side-street approach volumes exceed the peak-hour signal warrant at the intersection of Dublin Canyon Road with Schaefer Ranch Road.