Table 1 Definition and descriptive statistics of explanatory variables
Variables | Definitions | Mean | S.D. | VIF |
|---|---|---|---|---|
Demographic | ||||
POPD | Population density (per square km) | 1210.83 | 4374.67 | 2.53 |
OLDP | The percentage of older population (%) | 15.56 | 4.40 | 1.65 |
BLAP | The percentage of black population or African American population (%) | 12.09 | 12.95 | 2.29 |
ASIP | The percentage of Asian population (%) | 3.89 | 4.48 | 2.14 |
LATP | The percentage of Hispanic Latino population (%) | 15.53 | 16.31 | 2.07 |
Socioeconomic | ||||
BDHP | Percentage of population having at least bachelor’s degree (%) | 31.26 | 10.71 | 7.11 |
MHIC | Yearly mean household income ($) | 82836 | 21101 | 6.68 |
CLUE | Citizen labor force unemployment rate (%) | 5.91 | 1.81 | 2.45 |
Travel | ||||
MILE | Public road mileage (meter) | 5238.21 | 5128.13 | 1.32 |
WFHP | Percentage of population work at home (%) | 4.83 | 1.88 | 2.21 |
PTAP | Percentage of population taking public transit (%) | 3.09 | 6.86 | 2.09 |
MTAT | Mean commuting time (minutes) | 24.94 | 5.01 | 2.60 |
Human Activity | ||||
GPPC | Change of grocery and pharmacy activity (%) | -3.03 | 10.80 | 3.27 |
WOPC | Change of workplace activity (%) | -27.70 | 14.49 | 4.74 |
TSPC | Change of transit stations activity (%) | -19.06 | 23.27 | 2.24 |