BTS | Table 5: Bridge Series Predictive Accuracy

Table 5: Bridge Series Predictive Accuracy

Sample period: 1998-2003

Series	RMSE	U-statistic	U-bias	U-variance	U-covariance
Bridge of the Americas Northbound Light Vehicle Traffic
ELBAC¹	1.573	0.181	0.31	0.02	0.67
ELBAC²	1.900	0.241	0.27	0.06	0.67
Bridge of the Americas Northbound Cargo Vehicle Traffic
ELBAT¹	0.089	0.831	0.45	0.31	0.24
ELBAT²	0.026	0.269	0.08	0.01	0.91
Bridge of the Americas Northbound Pedestrian Traffic
ELBAW¹	0.273	0.760	0.01	0.04	0.95
ELBAW²	0.327	0.883	0.12	0.05	0.83
Paso del Norte Bridge Northbound Light Vehicle Traffic
ELBPC¹	0.430	0.091	0.26	0.01	0.73
ELBPC²	0.506	0.11	0.15	0.03	0.82
Paso del Norte Bridge Northbound Pedestrian Traffic
ELBPW¹	1.237	0.228	0.62	0.00	0.38
ELBPW²	1.469	0.272	0.74	0.00	0.26
Ysleta-Zaragoza Bridge Northbound Light Vehicle Traffic
ELBYC¹	0.339	0.110	0.00	0.02	0.98
ELBYC²	0.432	0.141	0.08	0.05	0.87
Ysleta-Zaragoza Bridge Northbound Cargo Vehicle Traffic
ELBYT¹	0.041	0.451	0.61	0.05	0.34
ELBYT²	0.035	0.406	0.02	0.02	0.96
Ysleta-Zaragoza Bridge Northbound Pedestrian Traffic
ELBYW¹	0.209	0.929	0.27	0.02	0.71
ELBYW²	0.248	0.995	0.46	0.12	0.42

¹ Previously published borderplex structural model forecast.

² Random walk forecast calculated as last available historical observation.