Table 3 Definition of Explanatory Variables

Table 3
Definition of Explanatory Variables

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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.