75B - PH - AMEND ZONING 2001 W MACARTHUR

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ENVIRONMENTAL 19rAOT REPORT ADDENDUM AMMSTNONO RANCH REVISED PROJECT SEPTEYSER 9017 SANTA ANA. CALIEOCNIA of p'rev'iously proposed intersection improvements shows that.all iutersectioti.iniproyemeius recommended for the Future Year (2111)7) conditions have been implemented by 201.6 except it the intersection of Bristol Street/Segerstrom Avenue. The Arnistrong Ranch Developihent Project EIR had anticipated that this intersectionwould operate at an unsatisfactory level of service in the without project condition due to anticipated cumulative projects. A Traffic Impact' Analysis (LSA, 20 17) was prepared analyzing the Revised Project in the existing (2,017) apd,opening year (2019) conditions. The Traffic Impact Analysis concluded that the additiona142.residential 'units proposed as.part of the Revised Project would notsigniticantly impact the nearby circulation system. All stud} area intersections would eontinue to operate at a satisftictorys Level of Service inboth-the a.m. and p.m, peak hours with the additioiial project - related trdffic. `1776 access driveway to the additional residences would also not interfere with the arterial street system. Therefore, operational traffic impacts would be less than significant. Therefore, the Revised Project would not result in new signiheant impacts beyond those identified in the Certified EIR: No neve mitigation measures would be required. b) The Armstrong;Ranch Development Project EIA reported that the trips generation, for the -project was lower than the threshold for analysis according to the Orange, Count} Congestion Managenfebt P6grarn guidelines. The p'roject's effect wits therefore dclermined to bvIcss than significant. As reported above, the Revised Project would generale rewer trips within the project area than the uses included in the Armstrong Ranch Development Project EiR. Because the project would produce fewer trips, the trip generation would still be lower than the threshold for analysis according to the Orange County Congestion Management Program guidelines and the impact would continue to be less than; significant, Therefore, the Revised Project would not result in new significant impacts beyond those identified in the Certified EIR. No new nritigation measures would be required, c) The Revised Project is located in the same project area and does not increase building height cotnpared to the project analyzed in the Armstrong Ranch Development Project 81R. Therefore the Revised Project is not expected to change the previous conclusion that there would be no impact to air triflic patterns resulting in substnntinl safety risks.'llterefore, the Revised -Project would not resuh in new_signific tut impacts beyond those identiFed in the Certified'EIR. No new mitigation measures would be required. d) Similar to the previously analyzed project, the Revised Project proposes standard design features includm,;'an ttoccss driveway from the Jaguar Way cul-de-sac, utilization of theexistingsouth leg or the Jaguar Way/Alton Avenue intersection, and a riglit-iniright-out driveway on Alton Avenue. internal to the project, an existing non-standard intersection between the parish parking lot and YNTCA parking lot would be replaced with a more standard,roundabout resulting, in reduced vehicle conflicts. Thu use of standard features would result in a less thansitmdficant increase in hazards due to design features. Therefore, the Revised Project would not result in new significant impacts' beyond those identified in the Certified EIR. No new mitigation measures would be required c) The Revised Project proposes an access driveway from the Jagintit Way cul-de-sac, utilization of the existing south lug of the Jaguar Way/Alton Avenue intersection, and it right-iii/right-out driveway on Alton Avenue, which should provide adequate emergency access and would provide P;1511C11bM1Addendum'•ilddemlum.dacx<J)W i;lbl 75B-116 2-G7