Model #1 



TT = 3.43 + 0.00391DI + 0.0036LDI 



: : Cumulative : Increased in 



: Variable : R-squared (%) : R-squared (%) 



: DI : 30.43 : 30.43 



: LDI : 42.69 : 12.26 



I 2 = 42.69%, a 2 = 3.37, F = 58.10, 4(x)F- 05 = 12.28 



Model #2 



TT = 3.18 + 0.00413DI + 0.0330LDI - 0.95LSL0 





: Cumulative : 



Increase in 



Variable 



: R-squared (%) : 



R-squared (%) 



DI 



: 30.43 : 



30.43 



LDI 



42 . 69 : 



12.26 



LSLO 



: 43.62 : 



0.93 



R 2 = 43.62%, a 2 = 3.34, F = 39.97, 4(x)F- 05 = 10.72 

 Model #3 



TT = 2.67 + 0.00796DI + . 1297LDI -SL0 2 - 12.80SLO + 5529 . 46SL0/DI - . 000222WT • LSLO 





Cumulative 



Increase in 



Variable 



R-squared (%) 



R-squared (%) 



DI 



30.43 



30.43 



LDI-SLO 2 



40.80 



10.37 



SLO 



43.41 



2.62 



SLO/DI 



47.74 



4.32 



WT-LSLO 



49.08 



1.34 



r2 _ 49.08%, a 2 = 3.06, F = 29.49, 4(x)F- 05 = 9.16 

 Model #4 



TT = 7.42 + 0.00424DI + 0.0307LDI - 0.0737WINVEL - 0.0327TEMP - 2.38LSL0 2 



Variable 



Cumulative 

 R-squared (%) 



: Increase in 

 R-squared (%) 



DI 



30.43 



30.43 



LDI 



42.69 



12.26 



WINVEL 



44.35 



1.66 



TEMP 



45.77 



1.42 



LSLO 2 



46.63 



0.85 



R 2 = 46.63%, a 2 = 3.20, F = 26.73, 4(x)F- 05 = 9.16 

 Model #5 



TT = 7.59 + 0.00233DI + 0.0289LDI - 0. 00282TEMP -WINVEL + . 000102DI -WINVEL - 4.38LSL0 2 



Variable 



Cumulative 

 R-squared (%) 



Increase in 

 R-squared (%) 



DI 



30.43 



30.43 



LDI 



42.69 



12.26 



TEMP -WINVEL 



47.08 



4.39 



DI -WINVEL 



51.01 



3.94 



LSLO 2 



53.83 



2.81 



R 2 = 53.83%, a 2 = 2.77, F = 35.67, 4(x)F- 05 = 9.16 



Figure 4. --Total turn time (TT) statistics 



8 



