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Mrs. Lawna Munholland <br />March 23, 2011 <br />' Page 5 <br />' SHARED PARKING ANALYSIS <br />' Shared Parking Methodology <br />Accumulated experience in parking demand characteristics indicates that a mixing of <br />' land uses results in an overall parking need that is less than the sum of the individual <br />peak requirements for each land use. Due to the existing and proposed mixed-use <br />' characteristics of Metro Town Square, opportunities to share parking now occur and <br />can be expected to continue with the pending center modifications and full center <br />floor area occupancy. The objective of this shared parking analysis is to forecast the <br />M peak parking requirements for the project based on the combined demand patterns of <br />different tenancy types at the site. <br />Shared parking calculations recognize that different uses often experience individual <br />peak parking demands at different times of day, or days of the week. When uses <br />share common parking footprints, the total number of spaces needed to support the <br />collective whole is determined by adding parking profiles (by time of day for <br />weekdays versus weekend days), rather than individual peak ratios as represented in <br />' the City of Santa Ana Zoning Code. In that way, the shared parking approach starts <br />from the City's own code ratios and results in the "design level" parking supply needs <br />' of a site. <br />It should be noted that the "demand" results of the shared parking calculation are <br />' intended to be used directly for comparison to site supply. No further adjustments or <br />contingency additions are needed because such contingencies are already built into the <br />peak parking ratios and time of day profiles used in the calculation. <br />There is an important common element between the traditional "code" <br />and the shared <br />parking calculation methodologies; the peak parking ratios or "highpoint" for each <br />land use's parking profile typically equals the "code" parking ratio for that use. The <br />analytical procedures for shared parking analyses are well documented in the Shared <br />Parking, 2"d Edition publication by the Urban Land Institute (ULI). <br />' Shared parking calculations for Metro Town Square utilize hourly parking <br />accumulations developed from field studies of single developments in free-standing <br />settings, where travel by private auto is maximized. These characteristics permit the <br />' means for calculating peak parking needs when land use types are combined. Further, <br />the shared parking approach illustrates how, at other than peak parking demand times, <br />an increasing surplus of spaces will service the overall needs of the center. <br />31 B-28