Region
Equation
Adjusted R2
D.W.
East
y = 2.807 x 1 − 1.887 x 6 + 1.018 × 10 − 13
0.981
1.403
Middle
y = 0.996 x 6 + 1.051 × 10 − 13
0.991
2.334
West
y = 1.676 x 3 − 0.857 x 4 + 0.170 x 7 − 1.002 × 10 − 13
0.987
2.253