General Approach - Seasonal Modeling Equations for Grand Rapids
Spring Model:
Traffic = exp [-64.2 + 0.003 *Temp- 0.014 *Precip- 0.00006 *CCI+ 0.14 *Wk1+ 0.07 *Wk2+ 0.17 *Hdy2- 0.05 *Hdy3+ 0.0368 *Year]
Summer Model:
Traffic = exp [-85.3 + 0.002 *Temp- 0.0003 *Precip- 0.002 *CCI+ 0.19 *Wk1+ 0.09 *Wk2- 0.3 *Hdy1+ 0.17 *Hdy2- 0.09 *Hdy3+ 0.0476 *Year]
Fall Model:
Traffic = exp [-67.3 + 0.002 *Temp- 0.025 *Precip- 0.001 *CCI+ 0.16 *Wk1+ 0.11 *Wk2+ 0.24 *Hdy2+ 0.08 *Hdy3+ 0.0384 *Year]
Winter Model:
Traffic = exp [-2.6 + 0.004 *Temp- 0.133 *Precip+ 0.003 *CCI+ 0.055 *Wk1- 0.02 *Wk2- 0.53 *Hdy1+ 0.016 *Hdy2- 0.09 *Hdy3+ 0.0058 *Year]
