TABLE 4 Air Series Predictive Accuracy,,,,,, Sample period: 1998–2003,,,,,, Series,RMSE,U-statistic,U-bias,U-variance,U-covariance, El Paso International Airport Domestic Passenger Arrivals,,,,,, ELAPDD1,125.9,0.004,0.51,0.01,0.48, ELAPDD2,99.7,0.003,0.33,0.02,0.65, El Paso International Airport International Passenger Arrivals,,,,,, ELAPDI1,6.947,0.276,0.74,0.02,0.24, ELAPDI2,4.867,0.203,0.75,0.03,0.22, El Paso International Airport Domestic Passenger Departures,,,,,, ELAPED1,140.9,0.004,0.38,0.01,0.62, ELAPED2,118.1,0.004,0.26,0.11,0.63, El Paso International Airport International Passenger Departures,,,,,, ELAPEI1,5.796,0.255,0.69,0.00,0.31, ELAPEI2,4.657,0.202,0.68,0.03,0.29, El Paso International Airport Inbound Freight,,,,,, ELAFDT1,8.622,0.055,0.02,0.10,0.88, ELAFDT2,9.838,0.063,0.07,0.09,0.84, El Paso International Airport Outbound Freight,,,,,, ELAFET1,4.889,0.046,0.05,0.01,0.94, ELAFET2,5.399,0.052,0.03,0.02,0.95, El Paso International Airport Inbound U.S. Mail,,,,,, ELAMD1,1.231,0.507,0.23,0.04,0.74, ELAMD2,1.361,0.552,0.28,0.15,0.57, El Paso International Airport Outbound U.S. Mail,,,,,, ELAME1,0.934,0.957,0.25,0.06,0.69, ELAME2,1.035,0.978,0.24,0.08,0.68, 1 Previously published borderplex structural model forecast.,,,,,, 2 Random walk forecast calculated as last available historical observation.,,,,,, ,,,,,, ,,,,,, ,,,,,,