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Existing Conditions <br />Existing Peak Hour Intersection Level of Service <br />The study area was observed during both the morning and the evening peak hours. The indicated levels <br />of service shown in Table I are representative of observed traffic conditions in the study area. <br />Appendix D contains the level of service analysis worksheets for Existing Conditions. <br />Table I - AM/PM Peak Hour Intersection Analysis <br />Existing Conditions <br />Signalized Intersections AM Peak Hour PM Peak Hour <br />LOS <br />d"Ey" <br />ICU Method ICU/LOS ICU/LOS OK <br />Main Street at Dyer Road 0.669 / B 0.815 / D <br />Main Street at MacArthur Boulevard 0.665 / B 0.679 / B x <br />Main Street at Sandpointe Avenue 0.297 / A 0.469 / A <br />Main Street at Sunflower Avenue 0.393 / A 0.704 / C <br />MacArthur Place at MacArthur Boulevard 0.687 / B 0.674 / B x <br />SR-55 SB Ramps at MacArthur Boulevard 0.694 / B 0.616 / B x <br />SR-55 NB Ramps at MacArthur Boulevard 0.757 / C 0.633 / B <br />Red Hill Avenue at MacArthur Boulevard 0.558 / A 0.791 / C x <br />HCM Method Delay/LOS Delay/LOS <br />SR-55 SB Ramps at MacArthur Boulevard 18.9 / B 17.1 / B X <br />SR-55 NB Ramps at MacArthur Boulevard 19.6 / B 16.7 / B <br />w - 1-iwcuun Capacky uuuzaTion, Delay is in seconds/vehicle, LOS = Level of Service <br />As shown in Table I, all study intersections operate at an acceptable level of service during the AM and <br />PM peak hours for Existing Conditions. <br />Figure 4 illustrates the Existing (2010) AM/PM peak hour traffic volumes. <br />KOA CORPORATION Updated Main and MacArthur Development Project <br />PLANNING 8 ENGINEERING I I Traffic Impact Study in City of Santa Ana <br />75B-143