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Table 9 - Determinations of Traffic Impacts (Opening Year (2013) Conditions) <br />Signalized Intersections <br />AM Peak Period <br />PM Peak Period <br />2013 NP <br />2013 WP <br />Increase <br />Impact, <br />2013 NP <br />ICU/LOS <br />2013 WP <br />ICU/LOS <br />Increase <br />ICU <br />Impact <br />ICU/LOS <br />ICU/LOS <br />ICU <br />Main Street at Dyer Road <br />0.5871 B <br />0.5921 B <br />.005 <br />NO <br />0.8391 D <br />0.8401 D <br />.001 <br />NO <br />Main Street at MacArthur Boulevard <br />0.684/9 <br />0.5581 B <br />.004 <br />NO <br />0.5981 B <br />0.7101 C <br />.012 <br />NO <br />Main Street at Sandpointe Avenue <br />0.3081 A <br />0.3251 A <br />.020 <br />NO <br />0.481 1 A <br />0.4851 A <br />.004 <br />NO <br />Main Street at Sunflower Avenue <br />0.405 1 A <br />0.4151 A <br />.010 <br />NO <br />0.7251 C <br />0.7401 C <br />.015 <br />NO <br />MacArthur Place at MacArthur Boulevard <br />0.7051 C <br />0.7441 C <br />.038 <br />NO <br />0.5941 B <br />0.7071 C <br />.013 <br />NO <br />SR -55 SB Ramps at MacArthur Boulevard <br />0.7141 C <br />0.7341 C <br />.020 <br />NO <br />0.5341 B <br />0.5551 B <br />.024 <br />NO <br />SR -55 NB Ramps at MacArthur Boulevard <br />0.7781 C <br />0.7931 C <br />.015 <br />NO <br />0.551 1 B <br />0.5591 B <br />.018 <br />NO <br />Red Hill Avenue at MacArthur Boulevard <br />0.5741 A <br />0.5801 A <br />.005 <br />NO <br />0.8131 D <br />0.8191 D <br />.005 <br />NO <br />Signalized Intersection HCM Method <br />Delay /LOS <br />Delay1LOS <br />Delay <br />Impact <br />Delay /LO <br />Delay /LOS <br />Delay <br />lmpac <br />SR -55 SB Ramps at MacArthur Boulevard <br />19.31 B <br />19.51 B <br />0.3 <br />NO <br />17.41 B <br />18.1 1 B <br />0.7 <br />NO <br />SR -55 NB Ramps at MacArthur Boulevard <br />20.1 1 C <br />20.41 C <br />0.3 <br />NO <br />15.91 B <br />17.41 B <br />0.5 <br />NO <br />Note: ICU = Intersection Capacity Utilization. Delay is in seconds. LOS = Level of Service. <br />Table 10 - Determinations of Traffic Impacts (Long Range (2035) Conditions) <br />Signalized Intersections <br />AM Peak Period <br />PM Peak Period <br />2035 NP <br />2035 WP <br />Increase <br />I mpac <br />2035 NP <br />ICU/LOS <br />2035 WP <br />ICU/LOS <br />Increase <br />ICU <br />1 m pac <br />ICU/LOS <br />ICU/LOS <br />ICU <br />Main Street at Dyer Road <br />0.8521 D <br />0.8551 D <br />0.003 <br />NO <br />0.8921 D <br />0.8941 D <br />0.002 <br />NO <br />Main Street at MacArthur Boulevard <br />0.7251 C <br />0.731 1 C <br />0.005 <br />NO <br />0.8091 D <br />0.8201 D <br />0.011 <br />NO <br />Main Street at Sandpointe Avenue <br />0.3221 A <br />0.3501 A <br />0.028 <br />NO <br />0.5421 A <br />0.5471 A <br />0.005 <br />NO <br />Main Street at Sunflower Avenue <br />0.5731 B <br />0.5891 B <br />0.015 <br />NO <br />0.7931 C <br />4.8141 D <br />0.017 <br />NO <br />MacArthur Place at MacArthur Boulevard <br />0.7531 C <br />0.8081 D <br />0.045 <br />NO <br />0.7751 C <br />0.7941 C <br />0.018 <br />NO <br />SR -55 SB Ramps at MacArthur Boulevard <br />0.771 1 C <br />0.7921 C <br />0.021 <br />NO <br />0.7191 B <br />0.7441 C <br />0.025 <br />NO <br />SR -55 NB Ramps at MacArthur Boulevard <br />0.8331 D <br />0.8471 D <br />0.014 <br />NO <br />0.591 1 B <br />0.7101 C <br />0.019 <br />NO <br />Red Hill Avenue at MacArthur Boulevard <br />0.5351 B <br />0.5421 B <br />0.005 <br />NO <br />0.8351 D <br />0.8401 D <br />0.005 <br />NO <br />Signalized Intersection HCM Method <br />Delay1LOSDelay1LOS <br />Delay <br />Impact <br />Delay1LO <br />Delay/ LOS <br />Delay <br />impac <br />SR -55 SB Ramps at MacArthur Boulevard <br />20.31 C <br />20.71 C <br />0.4 <br />NO <br />17.51 B <br />18.3 1 B <br />0.8 <br />NO <br />SR -55 NB Ramps at MacArthur Boulevard <br />21.41 C <br />21.81 C <br />0.4 <br />NO <br />17.51 B <br />18.2/9 <br />0.5 <br />NO <br />Note: ICU = Intersection Capacity Utilization. Delay is in seconds. LOS = Level of Service. <br />KOA CORPORATION Updated Main and MacArthur Development Project <br />PLANNING & ENGINEERING 35 Traffic Impact Study in City of Santa Ana <br />