Table 5 - Variable Correlations
Table 5 - Variable Correlations
Note: All correlations are expressed as bivariate regression tests of "t" to facilitate comparison.
| Author | Variable | Variable | ||
|---|---|---|---|---|
| Cost | Implementation | Acceptability | ||
| Arnold | Effectiveness | 4.46 | 4.37 | 2.56 |
| Arnold | Cost | 6.12 | -0.28 | |
| Arnold | Implementation | -1.54 | ||
| Downs | Effectiveness | 1.42 | -0.13 | -2.2 |
| Downs | Cost | 0.68 | -4.02 | |
| Downs | Implementation | -2.27 | ||
| Zupan | Effectiveness | -1.54 | 0.18 | -2.08 |
| Zupan | Cost | 0.49 | 1.72 | |
| Zupan | Implementation | -2.59 | ||
* 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.