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Project Name: <br />Location: <br />Queuing Formula: <br />ATTACHMENT B <br />QUEUING ANALYSIS <br />Corinthian College <br />Parking Structure <br />M = In p(x >Al) - In Qm -1 <br />In p <br />M = queue length which is exceeded p percent of the time 3.0 vehicles <br />Number of vehicles in queue per lane 3.0 <br />Required vehicle storage per lane in advance of gate 75 <br />(at 25 feet per vehicle per lane) <br />INPUT DATA: <br />p(x >M) = acceptable probability of the queue exceeding <br />the storage <br />5% <br />N = number of service channels (drive -in positions) <br />1 <br />Q = service rate per channel (vehicles per hour) <br />900 <br />(Based on number of seconds per vehicle entry) <br />4 <br />q = demand rate on the system (vehicles per hour) <br />498 <br />p = demand rate / service rate = q / NQ = utilization factor <br />0.5533 <br />Q m = tabled values of the relationship between queue length, <br />0.55333 <br />number of channels, and utilization factor <br />