Variables Survey (Mean/SD) Survey (Mean/DMP90) Survey (Median/SD) Survey (Median/DMP90) GPS (Mean/SD) GPS (Mean/DMP90) GPS (Median/SD) GPS (Median/DMP90)
Estimates (T-Stats) Estimates (T-Stats) Estimates (T-Stats) Estimates (T-Stats) Estimates (T-Stats) Estimates (T-Stats) Estimates (T-Stats) Estimates (T-Stats)
Centrality - Travel Time - [Interstate/Noninterstate] −1.19 (−2.89) *** −0.46 (−3.72) *** −1.20 (−2.90) *** −0.70 (−3.56) *** −0.33 (−3.88) *** −0.31 (−3.86) *** −0.19 (−3.39) *** −0.17 (−3.31) ***
Dispersion - Travel Time - [Interstate/Noninterstate] −1.54 (−2.89) *** −0.38 (−3.41) *** −1.93 (−3.05) *** −0.61 (−3.71) *** −0.14 (−3.01) *** −0.12 (−2.75) *** −0.15 (−3.41) *** −0.11 (−2.91) ***
Gender - [Noninterstate] 1 = Male; 0 = Female 1.25 (0.85) 1.54 (0.103) 2.02 (1.46) 1.84 (1.69) * −0.54 (−0.75) 0.25 (0.52) 0.09 (0.14) j 0.55 (0.94)
Income - [Noninterstate] (US$50, 000, US$74, 999] 1 = In; 0 = Out 1.32 (0.76) 0.400 (0.36) 0.66 (0.42) 0.05 (0.04) 0.68 (0.71) −0.13 (−0.14) −0.39 (0.44) −0.63 (−0.76)
Income - [Noninterstate] (US$75, 000, US$99, 999] 1 = In; 0 = Out 1.52 (0.86) −0.042 (−0.04) 0.66 (0.42) −0.29 (−0.26) 0.14 (0.14) −0.80 (−0.78) −0.27 (−0.31) −0.79 (−0.92)
Income - [Noninterstate] (US$100, 000, ∞+)] 1 = In; 0 = Out −1.75 (−0.77) −1.03 (−0.89) −3.73 (−1.65) * −1.66 (−1.16) 1.07 (1.17) 0.25 (0.30) 0.08 (0.10) −0.32 (−0.43)
Type of Work Trip - [Noninterstate] 1 = From Home-to-Work; 0 = From Work-to-Home. −0.19 (−0.14) 0.49 (0.62) 0.29 (0.80) 0.75 (0.80) −0.29 (−1.37) 0.35 (0.52) −0.16 (−0.28) 0.31
Alternative Specific Constant - [Noninterstate] −2.07 (−1.13) −2.02 (−1.86) * −2.04 (−1.48) −2.35 (−1.85) * −1.03 (−1.37) −1.20 (−1.66) * -0.22 (−0.31) −0.60 (−0.90)
Reliability Ratio RR 1.30 0.83 1.60 1.14 0.42 0.39 0.77 0.65
95% Confidence Interval [1.08, 1.51] [0.59, 1.08] [1.32, 1.89] [0.95, 1.35] [0.18, 0.69] [0.16, 0.61] [0.37, 1.16] [0.28, 1.02]
Intercept Log-Likelihood llAC −51.472515 −51.472515 −51.472515 −51.472515 −51.472515 −51.472515 −51.472515 −51.472515
Final Log-Likelihood llβ̂ −9.4065462 −22.884538 −10.486297 −18.352769 −30.111183 −31.944981 −36.652578 −39.258894
Likelihood Ratio Index ρ2 0.81725109 0.55540276S 0.79627386 0.64344525 0.41500463 0.37937789 0.28791942 0.23728433
Akaike Information Criterion AIC 34.81309 61.76908 36.97259 52.70554 76.22237 79.88996 89.30516 94.51779
Bayesian Information Criterion BIC 59.21194 86.16792 61.37144 77.10439 100.6212 104.2888 113.704 118.9166
Number of Observations 78 78 78 78 78 78 78 78
Number of Subjects 39 39 39 39 39 39 39 39