Table 1.
Regression model results.
| VARIABLE | Estimate | p-value | VARIABLE | Estimate | p-value |
| CONSTANT | -2.1166 | 0.0000 | Urban form | ||
| Age | POPULATION DENSITY | -0.0218 | 0.0000 | ||
| AGE < 20 | -0.4165 | 0.0000 | Spatial expansion | ||
| AGE 20-35 | 0.0520 | 0.0000 | DISTANCE TO CBDb | 4.3285 | 0.0000 |
| AGE 36-50 | Reference | *Age 65+ | -0.5318 | 0.0334 | |
| AGE 51-64 | -0.0217 | 0.0144 | *Single Parent | -1.3899 | 0.0024 |
| AGE 65+ | 0.6027 | 0.0529 | *Low Income | -0.2927 | 0.1597 |
| Income | X2 | -4.1085 | 0.0000 | ||
| INC. REFUSE/DON'T KNOW | -0.1730 | 0.0000 | *Age 65+ | 0.6009 | 0.1901 |
| INCOME < 20 K | -0.9787 | 0.0080 | *Single Parent | 2.1477 | 0.0336 |
| INCOME 20-40 K | -0.2513 | 0.0000 | *Low Income | -2.7450 | 0.0000 |
| INCOME 40-60 K | -0.1889 | 0.0000 | X | 5.6710 | 0.0000 |
| INCOME 60-80 K | -0.1072 | 0.0000 | *Age 65+ | -1.0814 | 0.1337 |
| INCOME 80-100 K | -0.0571 | 0.0001 | *Single Parent | -3.7316 | 0.0105 |
| INCOME > 100 K | Reference | *Low Income | 3.3953 | 0.0003 | |
| Household structure | X*Y | -0.4131 | 0.0009 | ||
| SINGLE | Reference | *Age 65+ | 0.1262 | 0.3903 | |
| COUPLE | 0.0105 | 0.1809 | *Single Parent | 1.5921 | 0.0119 |
| COUPLE W/CHILDREN | -0.1236 | 0.0000 | *Low Income | -0.4074 | 0.1887 |
| SINGLE PARENT | 0.3073 | 0.3242 | Y | 4.8965 | 0.0000 |
| OTHER | 0.0429 | 0.0002 | *Age 65+ | -1.2045 | 0.0298 |
| Mobility tools | *Single Parent | -0.8996 | 0.2096 | ||
| DRIVER LICENSE | 0.3061 | 0.0000 | *Low Income | 0.0420 | 0.4768 |
| VEHICLE OWN | 0.1699 | 0.0000 | Y2 | -5.4665 | 0.0000 |
| *Age 65+ | -0.0036 | 0.4556 | *Age 65+ | 1.2649 | 0.0285 |
| *Single Parent | -0.0410 | 0.2030 | *Single Parent | 1.7897 | 0.0611 |
| *Low Income | 0.0159 | 0.2766 | *Low Income | -0.3942 | 0.2974 |
| TRANSITa | -0.0826 | 0.0001 | |||
| *Age 65+ | -0.1679 | 0.0043 | R2 | 0.199 | |
| *Single Parent | -0.1284 | 0.1488 | R2adj | 0.198 | |
| *Low Income | 0.0925 | 0.0329 | s2 | 1.208 | |
| Occupation | S | 1.099 | |||
| FULL TIME EMPLOYMENT | 0.5701 | 0.0000 | N | 122420 | |
| *Age 65+ | -0.0953 | 0.0262 | |||
| *Single Parent | 0.0073 | 0.4278 | |||
| *Low Income | -0.0602 | 0.0106 | |||
| PART TIME EMPLOYMENT | 0.1674 | 0.0000 | |||
| *Age 65+ | 0.0605 | 0.1878 | |||
| *Single Parent | 0.0701 | 0.2369 | |||
| *Low Income | 0.1443 | 0.0006 | |||
| STUDENT | 0.5323 | 0.0000 | |||
| FREE PARKING @ WORK | 0.2271 | 0.0000 | |||
Independent variable is log of average trip length
Notes:
aMajor transit station within 500 m
bCentral Business District