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4. ANALYSIS RESULTS <br />Developing a method of estimating future design-day parking demand entailed conducting several <br />analyses using the data collected. First, the consistency of the data collected from each site was <br />compared. Second, possible relationships between parking demand, sales activity levels (sales and <br />transactions), square footage, and other store characteristics were examined to determine the best <br />possible predictor of parking demand. Third, the study day parking demand values were adjusted to <br />the peak hour of the 5`h busiest day. Fourth, a range of parking demand rates was determined based <br />on the results of the parking study. <br />Data Comparison <br />Several components of the data collected were compared between the study sites to assist in <br />determining whether the data was biased or unreasonable. These components included the number of <br />transactions, sales totals, visiting customers, parking demand patterns, and peak hours of activity. <br />Comparisons of several of these components have already been described in the previous chapter. <br />Specifically, both study stores had roughly the same building configuration, experienced the same <br />patterns of parking lot use, and experienced similar peak hours of customer and parking activity. <br />Surprisingly, both stores also had essentially the same number of visiting potential customers. <br />However, as shown in Table 4, each store experienced different transaction-based characteristics. <br />While not directly comparable due to their different study dates, the Montebello store brought in <br />76% more in sales on October I than the Pomona store brought in on October 8. Not only did the <br />Montebello store have more transactions, but the average transaction amount was 42% higher than <br />that of the Pomona store ($142 versus $100). These results are partially due to the fact that the <br />Montebello store is about 16% larger than the Pomona store, but could also be partly due to their <br />different location types (industrial versus retail areas). For example, the Pomona store, which is <br />located in a retail shopping center, had a higher percentage of visiting customers who did not make a <br />purchase. <br />Table 4 - Employees, Customers, and Transactions on the Studv Dav <br /> Store Average Transactions Visiting <br />Store <br /># <br />Store Name <br />Size <br />Employees <br />Transaction Total During Customers* <br /> <br />(sq.ft.? <br />Amount Transactions 8 Hours of During 8 Hours <br /> Stud of Stud <br />703 MONTEBELLO 75,618 46 $142.58 970 708 804 <br />705 POMONA 65,367 33 $100.63 753 613 799 <br />*Excludes children. Couples were counted as "l customer." <br />These comparisons reveal that the two stores exhibit similar customer and parking activity patterns <br />during the course of the day, but that the magnitude of this activity differs between the stores, likely <br />due to store size and location type. A larger set of study stores would be necessary to determine <br />whether these relationships are statistically significant. <br />Parking Study of Two Contractor s Warehouse Stores - Final Report Page 9 <br />31 Aa45