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Table 5 Multinomial Logit Model for Vehicle Type Chosen for Trip by Driver

Table 5
Multinomial Logit Model for Vehicle Type Chosen for Trip by Driver

Dependent variable: vehicle type choice Beta SE t-stat P-value  
 Constant  SUV –2.464 0.244 -10.108 0.000
Pickup –2.322 0.145 –16.046 0.000
Minivan –2.687 0.183 –14.653 0.000
Vehicle age   –0.056 0.002 –31.158 0.000
 Age of traveler  SUV 0.077 0.012 6.550 0.000
Pickup 0.047 0.006 7.239 0.000
Minivan 0.112 0.008 13.575 0.000
 Age2 of traveler  SUV –8.34E–04 1.36E–04 –6.119 0.000
Pickup –5.71E–04 7.04E–05 –8.111 0.000
Minivan –1.09E–03 9.09E–05 –11.977 0.000
 Male driver  SUV 0.550 0.048 11.401 0.000
Pickup 3.172 0.035 91.060 0.000
Minivan –0.411 0.035 –11.806 0.000
 Employed driver  SUV 0.119 0.071 1.685 0.092
Pickup 0.089 0.046 1.927 0.054
Minivan –0.330 0.048 –6.824 0.000
 Work trip  SUV 0.058 0.063 0.919 0.358
Pickup 0.359 0.042 8.549 0.000
Minivan –0.034 0.048 –0.713 0.476
 Recreational trip  SUV 0.056 0.059 0.947 0.344
Pickup –0.170 0.037 –4.579 0.000
Minivan –0.032 0.041 –0.773 0.440
 Population density  SUV 8.37E–06 5.34E–06 1.567 0.117
Pickup –1.54E–06 4.15E–06 –0.370 0.711
Minivan 1.66E–06 3.75E–06 0.443 0.658
 Income per person  SUV 6.21E–07 1.67E–06 0.371 0.710
Pickup –6.29E–06 1.40E–06 –4.509 0.000
Minivan 4.76E–06 1.64E–06 2.896 0.004
 Weekend indicator  SUV 0.169 0.053 3.199 0.001
Pickup –0.046 0.033 –1.387 0.166
Minivan –0.042 0.037 –1.138 0.255
 Vehicle occupancy  SUV 0.229 0.029 7.970 0.000
Pickup –0.449 0.020 –22.796 0.000
Minivan 0.385 0.017 22.138 0.000
 Trip length (min.)  SUV –0.40E–03 0.17E–02 0.228 0.820
Pickup –1.00E–03 0.11E–02 –0.882 0.378
Minivan –0.51E–02 0.13E–02 –3.866 0.001

 

Log-likelihood function  
Constant only –36009.5
Convergence –27703.3
Pseudo–R2 0.231

Number of observations: 50,865 vehicle trips
Equation for model form