Table B-1 Arnold Model
| Equation | ||||
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |
| Assumptions: Semantic differences: Effectiveness: Minimum-average | 1 | 1 | 1.0 | 1.0 |
| Assumptions: Semantic differences: Effectiveness: Average-maximum | 1 | 1 | 3.2 | 2.7 |
| Assumptions: Semantic differences: Cost: Inexpensive-average | 1 | 1 | 1.0 | 0.0 |
| Assumptions: Semantic differences: Cost: Average-expensive | 1 | 1 | 3.2 | 1.0 |
| Assumptions: Semantic differences: Implementation: Easy-average | 1 | 1 | 1.0 | 1.0 |
| Assumptions: Semantic differences: Implementation: Average-difficult | 1 | 1 | 3.2 | 1.7 |
| Assumptions: Component weights | Not applicable | Not applicable | Not applicable | Not applicable |
| Results: Estimated coefficients: Add supply: Coefficient | 0.29 | 0.31 | 0.35 | |
| Results: Estimated coefficients: Add supply: Standard error | 0.19 | 0.21 | 0.21 | |
| Results: Estimated coefficients: Add supply: t-score | 1.54 | 1.49 | 1.63 | |
| Results: Estimated coefficients: TDM: Coefficient | -0.16 | -0.14 | -0.15 | |
| Results: Estimated coefficients: TDM: Standard error | 0.17 | 0.15 | 0.15 | |
| Results: Estimated coefficients: TDM: t-score | -0.96 | -0.93 | -1 | |
| Results: Estimated coefficients: Growth control: Coefficient | 0.04 | 0.00 | 0.01 | |
| Results: Estimated coefficients: Growth control: Standard error | 0.14 | 0.13 | 0.13 | |
| Results: Estimated coefficients: Growth control: t-score | 0.28 | -0.04 | 0.05 | |
| Results: Estimated coefficients: Effectiveness: Coefficient | 0.64* | 0.46* | 0.54* | 0.51* |
| Results: Estimated coefficients: Effectiveness: Standard error | 0.14 | 0.19 | 0.19 | 0.19 |
| Results: Estimated coefficients: Effectiveness: t-score | 4.49 | 2.42 | 2.88 | 2.73 |
| Results: Estimated coefficients: Cost: Coefficient | -0.09 | -0.15 | -0.25 | -0.28 |
| Results: Estimated coefficients: Cost: Standard error | 0.16 | 0.17 | 0.18 | 0.20 |
| Results: Estimated coefficients: Cost: t-score | -0.55 | -0.85 | -1.37 | -1.38 |
| Results: Estimated coefficients: Implementation: Coefficient | -0.48* | -0.61* | -0.58* | -0.57* |
| Results: Estimated coefficients: Implementation: Standard error | 0.16 | 0.18 | 0.18 | 0.18 |
| Results: Estimated coefficients: Implementation: t-score | -3.06 | -3.35 | -3.28 | -3.19 |
| Results: Estimated coefficients: Goodness-of-fit: Standard error of Y | 0.85 | 0.84 | 0.83 | 0.83 |
| Results: Estimated coefficients: Goodness-of-fit: R-squared | 32.40% | 36.70% | 38.60% | 39.30% |
| Results: Estimated coefficients: Goodness-of-fit: Number of observations | 53 | 53 | 53 | 53 |
| Results: Estimated coefficients: Goodness-of-fit: Degrees of freedom | 50 | 47 | 47 | 47 |
* significant at 0.01 level
** significant at 0.05 level
*** 1.00 < t < 2.00
d.f. = degrees of freedom
HOV = high-occupancy vechicle
NA = not applicable
SOV = single-occupancy vehicle
SRSD = studentized residual
TDM = travel demand management
TMA = transportation management association
TSM = transportation system management
U = data are unavailable
VHT = vehicle hours of travel
VMT = vehicle-miles traveled
* Significant at 95% confidence interval.
Updated: Saturday, May 20, 2017