Table 3 Definition of Explanatory Variables
Table 3
Definition of Explanatory Variables
| Variable | Definition | Descriptive statistic (N = 4,188) |
|---|---|---|
| Male | 1 if male; 0 otherwise | 54.3% |
| Young | 18 ≤ age ≤ 29 | 18.8% |
| Middle | 30 ≤ age ≤ 55 | 54.4% |
| License | 1 if
licensed; 0 otherwise |
94.4% |
| Jbfull | 1 if employed
full time; 0 otherwise |
82.6% |
| Student | 1 if student; 0 otherwise | 13.4% |
| Single | 1 if single; 0 otherwise | 20.1% |
| SinPar | 1 if single parent; 0 otherwise | 4.3% |
| Couple | 1 if couple with
no children; 0 otherwise |
27.8% |
| Cwkid | 1 if couple with
children; 0 otherwise |
28.1% |
| Linc | $5,000 ≤ income ≤ $29,999 | 19.6% |
| Minc | $30,000 ≤ income ≤ $74,999 | 43.3% |
| Hinc | Income ≥ $75,000 | 22.5% |
| Drvwk | 1 if drive to work; 0 otherwise | 67.4% |
| White | 1 if white; 0 otherwise | 69.2% |
| CGC | 1 if no. cars ≥ no. commuters in hhld | 86.4% |
| Const | Constant | |
| IV | Inclusive value parameter for nest | |
| Eat-meal | Eat-meal activity | |
| Shp/PB | Shopping/personal business/serve child activity | |
| Ent | Entertainment/social recreation | |
| Return home | Return home trip | |
| Before work | Activity undertaken before work start | |
| At work | Activity undertaken during work | |
| After work | Activity undertaken after work end |
Note: The descriptive statistics presented here are derived from a sample of 4,188 commuters who provided complete information on all variables included in the nested logit model. Therefore, the values presented here may differ from those in table 1, where person characteristics were derived from the full sample of 4,331 commuters who responded to the survey.