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TRAFFIC IMPACT ANALYSIS FAIRVIEW STREET IMPROVEMENTS FROM 9T" STREET TO 16T" STREET AND /\ <br />JUNE 2018 BRIDGE REPLACEMENT PROJECT J" <br />SANTA ANA, CALIFORNIA <br />Table C: 2021 Intersection LOS Summary <br />Intersection <br />Existing Conditions <br />2021 No Build Conditions <br />2021 Build Conditions <br />AM Peak <br />Hour <br />PM Peak <br />Hour <br />AM Peak <br />Hour <br />PM Peak <br />Hour <br />AM Peak <br />Hour <br />PM Peak <br />Hour <br />vac <br />Delay <br />LOS <br />vac <br />Delay <br />LOS <br />vac <br />Delay <br />LOS <br />vac <br />Delay <br />LOS <br />vac <br />Delay <br />LOS <br />vac <br />Delay <br />LOS <br />1 <br />Fairview St/17`h St <br />0.835 <br />D <br />0.902 <br />E <br />0.853 <br />D <br />0.954 <br />E <br />0.860 <br />D <br />0.948 <br />E <br />2 <br />Fairview St/16th Stl <br />31.6 <br />D <br />20.0 <br />C <br />33.9 <br />D <br />20.7 <br />C <br />>50.0 <br />F <br />27.2 <br />D <br />3 <br />Fairview St/12th Stl <br />25.1 <br />D <br />19.0 <br />C <br />26.0 <br />D <br />19.7 <br />C <br />22.1 <br />C <br />18.0 <br />C <br />4 <br />Fairview St/9`h Stl <br />>50.0 <br />F <br />47.4 <br />E <br />>50.0 <br />F <br />>50.0 <br />F <br />>50.0 <br />F <br />41.4 <br />E <br />5 <br />Fairview St/Civic Center Dr <br />0.642 <br />B <br />0.640 <br />B <br />0.664 <br />B <br />0.651 <br />B <br />0.691 <br />B <br />0.665 <br />B <br />= unsatisfactory LOS <br />The intersection is unsignalized and was assessed using the HCM methodology. Delay values shown are in seconds per vehicle. <br />LOS = level of service <br />>50.0 = HCM delay value is greater than 50.0 seconds per vehicle, LOS F <br />v/c = volume -to -capacity ratio <br />Table D: 2021 ADT Volumes and LOS <br />Roadway Segment I Arterial Type Capacity ADT LOS <br />Existing Conditions <br />17t Street to 16t Street <br />4 Lanes Divided <br />37,500 <br />42,440 <br />F <br />Fairview <br />16t Street to 12t Street— Fairview Bridge <br />4 Lanes Undivided <br />25,000 <br />41,890 <br />F <br />Street <br />12t Street to 9t Street <br />4 Lanes Divided <br />37,500 <br />40,980 <br />F <br />9t Street to Civic Center Drive <br />6 Lanes Divided <br />56,300 <br />41,720 <br />C <br />2021 No Build Conditions <br />17t Street to 161Street <br />4 Lanes Divided <br />37,500 <br />42,910 <br />F <br />Fairview <br />16t Street to 12t Street— Fairview Bridge <br />4 Lanes Undivided <br />25,000 <br />42,350 <br />F <br />Street <br />12t Street to 9t Street <br />4 Lanes Divided <br />37,500 <br />41,430 <br />F <br />9t Street to Civic Center Drive <br />6 Lanes Divided <br />56,300 <br />42,180 <br />C <br />2021 Build Conditions <br />17t Street to 16t Street <br />4 Lanes Divided <br />37,500 <br />43,620 <br />F <br />Fairview <br />16t Street to 12t Street— Fairview Bridge <br />6 Lanes Divided <br />56,300 <br />43,050 <br />C <br />Street <br />12t Street to 9t Street <br />6 Lanes Divided <br />56,300 <br />42,110 <br />C <br />9t Street to Civic Center Drive <br />6 Lanes Divided <br />56,300 <br />42,880 <br />C <br />= unsatisfactory LOS <br />ADT = average daily traffic <br />LOS = level of service <br />v/c = volume -to -capacity <br />2021 Build Conditions <br />Figure 6 shows the OCTAM forecast -derived 2021 Build a.m. and p.m. peak -hour traffic volumes. As <br />shown in Table C, the intersections along Fairview Street are anticipated to operate at acceptable <br />LOS with the exception of the following intersections: <br />Fairview Street/171h Street (LOS E during the p.m. peak hour) <br />Fairview Street/161h Street (LOS F during the a.m. peak hour) <br />Fairview Street/9th Street (LOS F during both the a.m. peak hour and LOS E in the p.m. peak hour) <br />P:\WKE1702\Traffic\doc\Traffic Analysis Report rev - Caltrans Comments.docx u06/07/18» 12 <br />