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diagrams showing the location of intersections with a Level of Service D or worse for existing conditions and with build out of the preferred land use. Staff then looked at what further mitigations could be applied to the 9 LOS E or F intersections (outside of the Downtown) at build out. These potential mitigation measures are shown in the column labeled "New Mitigations", and the impact of the mitigations on LOS is shown in the columns headed "Additional Mitigations." Each of these intersections and additional mitigations are described in Attachment 1 0, and as follows: . Valley Avenue and Blackbird Drive: replacing the stop sign with a traffic signal improves this intersection to an LOS B in the evening peak hour. Staff notes, however, that previously the City Council did not support additional traffic signals on this segment of Valley Avenue. . Owens Drive and Hopyard Road: to improve the LOS in the p.m. from F to D would require several additional lanes and a change in the cycle length to 125 seconds in the p.m. The result of the additional lanes and roadway widening would be to eliminate virtually all landscaping in the medians of all legs of the intersection, and would likely require purchase of additional right of way at the north-west corner of the intersection. The City Council could chose not to make all the improvements necessary to attain LOS D at this intersection, and this would be consistent with previous City Council support of a "constrained gateways" concept. . Stoneridge Drive and Hopyard Road: to improve the LOS in the evening peak hour from F to D would require an east-bound free right turn, which may require the removal of one south-bound through lane. . 1-580 east-bound off ramp/Pimlico and Santa Rita Road: to improve the LOS in the evening peak hour from F to D would require widening of the south-bound approach to provide for a second left turn lane and a change in the cycle length to 120 seconds. The addition of the second left turn lane may not be feasible given the limited right of way over the freeway overpass. Again, a constrained gateway policy would be consistent with not making all the intersection improvements necessary to attain LOS D. . Valley Avenue and Santa Rita Road: to improve the LOS in the evening peak hour from F to E would require widening of the west-bound approach to provide a second left turn lane. This improvement would require elimination of some landscaping. With the additional lane this intersection will continue to experience significant backups for south-bound Santa Rita Road traffic trying to turn left at Valley Avenue. The only effective mitigation for this condition (which would bring the intersection to an LOS D) would be an additional (third) left turn lane, requiring elimination of additional landscaping. This mitigation was not included in the model at City Council direction. . Stone ridge Drive at Johnson Drive: to improve the LOS in the evening peak hour from F to D would require restriping the west-bound right-turn lane to a shared through/right lane and widening the west-bound departure to receive Page 4 of 6