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Mr. Robert Bisno October 3, 2017 Page 4 ground floor retail, survey period, empirically derived peak parking ratio and peak hour, and the Saturday daytime peak parking ratio and peak hour. Table 2 indicates that the total number of apartments units for each site ranges from 142 units to 481 units and includes a unit mix of studios, one -bedroom units, two-bedroom units, and/or three-bedroom units. Parking facilities at these locations include parking structures, parking garages, and surface lots, with a combined parking supply for residents and the public/guests ranging from 223 spaces to 1,020 spaces. In addition to on-site parking, on -street parking is also available at two (2) of the facilities. More specifically, items 6 and 7 are mixed-use developments and have a retail component within their site similar to that which is proposed as part of the Project. Table 2 further indicates that parking demand surveys/observations were conducted on one to two "typical" weeknights (Tuesday, Wednesday, Thursday) at nine of the comparable sites, and on a Saturday at three of the sites. These survey time periods were selected for analyses because parking needs are the greatest during these times; more specifically, peak demand for residential uses typically occurs during weeknights compared to weekday daytime and weekend conditions. This parking demand characteristic is evident from the hourly parking profiles in the Shared Parking (2nd Edition) publication by the Urban Land Institute (ULI) that indicate 90% to 100% parking occupancy between 6:00 PM and 12:00 AM/midnight, and the Parking Generation (40' Edition) publication by the Institute of Transportation Engineers (ITE) that reports 92% to 100% parking occupancy between 10:00 PM and 6:00 AM for low/mid-rise apartments (the only residential type with this data), and that parking demand is greater during these weekday overnight hours compared to a Saturday condition. Based on these considerations, it is concluded that the empirical basis for the peak parking ratios reported on Table 2 coincides with, and is representative of, the absolute peak parking condition for each of the surveyed sites. The tenant and guest peak parking ratio (spaces per DU) for each of the twelve comparable sites under absolute peak conditions (occurring on a weeknight, as explained above) and Saturday daytime conditions (where available) are presented on Table 2. The array of absolute peak parking rates yields an average ratio of 1.35 spaces per unit, an 85th percentile ratio of 1.48 spaces per unit, and a 95th percentile ratio of 1.61 spaces per unit. Saturday parking ratios are less, and range between 0.97 and 1.13 spaces per unit, occurring from noon to 3:00 PM. Given that these sites are comparable in terms of apartment unit mix (i.e. one -bedroom, two-bedroom, three-bedroom, etc.) and seven (7) of the sites come within under 100 total units compared to the proposed Project, LLG concludes that the parking ratios derived from the twelve comparable sites are accurate representations for the unique N 3700`2J(,37» -I he Madison, Sau1a �naTarking Study'Rehoi I, M The N Iar ivun Parkins Study 10-3-1 Zdnc 15A-53