Table 6 - Outliers
Note: studentized residuals may be
interpreted as tests of "t."
Excel | CSV
| 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.
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