Research Article

Analyzing Household Vehicle Ownership in the Japanese Local City: Case Study in Toyota City

Table 5

Estimation result of the proposed model (N = 14,855).

Explanatory variablePosterior meanPosterior standard deviation95% BCI

Number of light motor vehicles (0, 1, or ≥ 2) [threshold values: −0.431 and 0.431]: ordered probit model
Age 60 (dummy)−0.0850.015(−0.11, −0.06)
Female (dummy)0.1090.017(0.08, 0.14)
Member 250.1110.009(0.09, 0.13)
Workers0.0520.013(0.03, 0.08)
Log (population density)−0.0610.005(−0.07, −0.05)
Density of railway stations−0.0390.024(−0.09, 0.01)
Annual income (10 million JPY)−0.0260.021(−0.07, 0.02)
Constant−0.5170.044(−0.60, −0.43)

Number of ordinary motor vehicles (0, 1, or ≥ 2) [threshold values: −0.431 and 0.431]: ordered probit model
Age 60 (dummy)−0.2420.013(−0.27, −0.22)
Female (dummy)−0.0600.015(−0.09, −0.03)
Member 250.0890.009(0.07, 0.11)
Workers0.1890.012(0.17, 0.21)
Log (population density)0.0060.005(0.00, 0.02)
Density of railway stations−0.0160.020(−0.06, 0.02)
Annual income (10 million JPY)0.0600.019(0.02, 0.10)
Constant−0.3270.040(−0.41, −0.25)

Number of small trucks (0, 1, or ≥ 2) [threshold values: −0.431 and 0.431]: ordered probit model
Age 60 (dummy)0.2510.023(0.21, 0.30)
Female (dummy)−0.0400.027(−0.09, 0.01)
Member 25−0.0260.014(−0.05, 0.00)
Workers0.1370.019(0.10, 0.18)
Farmer (dummy)0.6100.039(0.53, 0.69)
Log (population density)−0.1190.007(−0.13, −0.11)
Annual income (10 million JPY)0.0350.027(−.02, 0.09)
Constant−0.8170.055(−0.92, −0.71)

Contents in bold and italic indicate that variables are significant with a 95% Bayesian credible interval.