Table 4a
Ordered Probit Model for Trip Occupancy: All Trip Purposes
| –0.565 |
0.007 |
–79.90 |
0.000 |
| 0.340 |
0.002 |
153.00 |
0.000 |
| –1.06E-05 |
2.05E-07 |
–51.50 |
0.000 |
| –8.79E-06 |
4.27E-07 |
–20.60 |
0.000 |
| 0.474 |
0.005 |
91.20 |
0.000 |
| 0.174 |
0.008 |
20.90 |
0.000 |
| –0.229 |
0.008 |
–30.40 |
0.000 |
| 0.500 |
0.006 |
78.80 |
0.000 |
| 0.021 |
0.006 |
3.21 |
0.001 |
| 0.544 |
0.011 |
49.20 |
0.000 |
| 0.000 |
na |
na |
na |
| 0.875 |
0.003 |
302.00 |
0.000 |
| 1.431 |
0.004 |
365.00 |
0.000 |
| 2.039 |
0.006 |
368.00 |
0.000 |
Note: Trip occupancy is grouped into 1, 2, 3, 4, and 5+ person levels.
| –324471.0 |
| –298694.3 |
| 0.079 |
Number of observations: 263,031 trips
Model form: Pr(Occupancy = 1) = Pr(μ* ≤ μo), Pr(Occupancy = 2) = Pr(μo ≤ μ* ≤ m1), Pr(Occupancy = 3) = Pr(μ1 ≤ μ* ≤ μ2), Pr(Occupancy = 4) = Pr(μ2 ≤ μ* ≤ μ3), and Pr(Occupancy ≥ 5) = Pr(μ3 ≤ μ*), where μ* = β′X + ε, and ε ~ Normal(0, 1)
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