Table 6 - Outliers
Wednesday, November 30, 2011
Table 6 - Outliers
Note: studentized residuals may be interpreted as tests of "t."
| Author | Strategies | Tactics | Studentized residual |
|---|---|---|---|
| Arnold | TSM (11 of 20) | Major intersection improvements | -2.02 |
| Arnold | TSM (11 of 20) | Removing/restricting on-street parking | -1.86 |
| Arnold | TSM (11 of 20) | Traffic management during reconstruction | -1.49 |
| Arnold | TSM (11 of 20) | Turn prohibitions | -1.1 |
| Arnold | TSM (11 of 20) | Minor intersection improvements | -1.09 |
| Arnold | TSM (11 of 20) | One-way streets | -1.05 |
| Arnold | TSM (11 of 20) | Integrated freeway/arterial surveillance/control system | 1.03 |
| Arnold | TSM (11 of 20) | Reversible traffic lanes on arterials | 1.29 |
| Arnold | TSM (11 of 20) | Traffic surveillance/control system | 1.44 |
| Arnold | TSM (11 of 20) | Traffic management team | 1.66 |
| Arnold | TSM (11 of 20) | Motorist information system | 1.67 |
| Arnold | Supply (4 of 7) | Reconstructing highways with improved design | -1.64 |
| Arnold | Supply (4 of 7) | Constructing new highways | -1.14 |
| Arnold | Supply (4 of 7) | Constructing HOV lanes | 1.35 |
| Arnold | Supply (4 of 7) | Toll-based financing to expedite new facilities | 1.40 |
| Arnold | TDM (1 of 21) | Implementing/improving paratransit services | -1.34 |
| Arnold | Growth (1 of 5) | Growth management | -1.85 |
| Downs | Supply (4 of 8) | Rapidly removing accidents | -1.55 |
| Downs | Supply (4 of 8) | Building added HOV lanes | -1.41 |
| Downs | Supply (4 of 8) | Building new roads without HOV lanes | 1.11 |
| Downs | Supply (4 of 8) | Improved transit service, amenities | 1.19 |
| Downs | Demand (4 of 15) | Adopting local growth limits | -1.61 |
| Downs | Demand (4 of 15) | Increasing automobile license fees | 1.04 |
| Downs | Demand (4 of 15) | Staggered working hours | 1.29 |
| Downs | Demand (4 of 15) | Tax-deductable commuting allowances | 1.92 |
| Zupan | TDM (7 of 22) | Transitchek (tax-deductable vouchers) | -1.81 |
| Zupan | TDM (7 of 22) | Transit-friendly design | -1.26 |
| Zupan | TDM (7 of 22) | Carpools | -1.22 |
| Zupan | TDM (7 of 22) | Staggered shifts | -1.22 |
| Zupan | TDM (7 of 22) | Preferential parking | -1.06 |
| Zupan | TDM (7 of 22) | Employer-subsidized transit | 1.06 |
| Zupan | TDM (7 of 22) | Trip reduction ordinances | 1.88 |
* 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.