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Grand Avenue Widening Project Environmental Impact Report Section 3.0 Figure 3.5-6 shows the projected 2020 daily traffic volumes on the project segment of Grand Avenue. As shown, the daily midblock volumes range from 31,300 vpd south of Seventeenth Street to 38,000 south of Fruit Street, and 36,600 vpd north of First Street. The 2020 AM and PM peak hour intersection turning volumes are shown in Figures 3.5-7 and 3.5-8, respectively. LOS Analysis. Analysis of future conditions was conducted to determine roadway and intersection operating efficiency as reflected by the LOS measures. Table 3.5-5 summarizes the future LOS for the three midblock locations on the project segment of Grand Avenue under the No Project Alternative and the Build scenario. As shown, the road segments between First and Fruit Streets would operate at LOS E or F in 2020 under the No Project Alternative. Under the Build scenario, these segments would operate at LOS B. The segment south of Seventeenth Street, which already provides six through lanes, would operate at LOS A under both the No Project Alternative and Build scenario. Table 3.5-6 shows the peak hour ICU and LOS values for the No Project Alternative and the Build scenario. As shown, under the 2020 No Project Alternative, unacceptable levels of service at LOS E or F, will occur at the following intersections during at least one of the peak hours: • Seventeenth Street • I-5 northbound ramps • Fourth Street TABLE 3.5-5 2020 ROAD LEVEL OF SERVICE SUMMARY Road Section NO PROJECT ALTERNATIVE BUILD ALTERNATIVE V/C LOS V/C LOS Grand Avenue: PM Peak Hour AM Peak Hour PM Peak Hour Intersection South of Seventeenth Street 0.56 A 0.56 A South of Fruit Street 1.01 F 0.67 B North of First Street 0.98 E 0.65 B TABLE 3.5-6 2020 INTERSECTION LEVEL OF SERVICE SUMMARY R- PROD-ENVIGrand eirWew Text - GrandlSection 3 Split&ction 3.5.doc Page 3.5-12 NO PROJECT ALTERNATIVE BUILD ALTERNATIVE AM Peak Hour PM Peak Hour AM Peak Hour PM Peak Hour Intersection ICU LOS ICU LOS ICU LOS ICU LOS Seventeenth Street 0.77 C 1.10 F 0.65 B 0.91 D I-5 northbound ramps 0.64 B 0.98 E 0.64 B 0.79 C Santa Ana Blvd./I-5 HOV ramps 0.73 C 0.89 D 0.73 C 0.74 F Fruit Street 0.59 A 0.79 C 0.49 A 0.65 B OrangeCounty Register Driveway 0.45 A 0.45 A 0.32 A 0.35 A Fourth Street 0.89 D 0.93 E 0.74 C 0.88 D First Street 0.84 D 0.85 D 0.78 C 0.72 C R- PROD-ENVIGrand eirWew Text - GrandlSection 3 Split&ction 3.5.doc Page 3.5-12