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Redwood City Costco Gasoline Expansion P�7.A. - Page 216 <br /> August 20,2012 ruye v <br /> back of queue (if a queue existed) to fully document the existing trip generation for the fuel station <br /> (which may be higher than vehicles processed by the fuel station). In addition to traffic counts, <br /> customer surveys were collected interviewing the users of the fuel station on their travel in order <br /> to document the existing trip type characteristics of the fuel station traffic. Overall, 195 surveys <br /> were collected during the weekday p.m. peak period and 211 surveys were collected during the <br /> weekend midday peak period to establish a site-specific trip type characteristics profile for the <br /> existing fuel station. The survey was created consistent with the Institute of Transportation <br /> Engineers (ITE) Trip Generation reference guidelines and documented four different trip types for <br /> the fuel station traffic: net new trips, internal trip, pass-by trips, and diverted trips. The results of <br /> the fuel station specific trip generation data collection are summarized in Table 2. <br /> Table 2 Existing Redwood City Costco Gasoline Station Trip Generation <br /> Weekday PM Peak Hour Weekend Midday Peak Hour <br /> In Out Total In Out Total <br /> Existing Costco Gasoline Station <br /> (12 fueling positions) <br /> Total Trip Ends 200 200 400 215 215 430 <br /> Internal Trips <br /> (22°o PM,47°o MDJ �45J (45J (90J (100J (100J (200J <br /> External Trips 155 155 310 115 115 230 <br /> Pass-by Trips <br /> (22°o PM,29°o MDJ �35J (35J (70J (35J (35J (70J <br /> Diverted Trips (90J (90J (180J (60J (60J (120J <br /> (59°o PM,52°o MDJ <br /> Net New Trips 30 30 60 20 20 40 <br /> Confirmed by the results of the trip generation study at the existing Redwood City Costco Gasoline <br /> facility is the fact that the unique nature of Costco operations and its membership requirements <br /> result in different trip characteristics than those observed at the standard fuel stations summarized <br /> in the ITE Trip Generation guidebook. The percentage of pass-by trips at Costco fuel stations is <br /> lower than that quoted in the ITE guidebook for typical fuel stations. Correspondingly, membership <br /> requirements also have a significant effect on trip internalization (or sharing of trips) between the <br /> warehouse and the fuel station. Fewer people exclusively visit a Costco fuel station (in comparison <br /> Kittelson&Associates,Inc. Boise,Idaho <br />