Chicago Regional Household Travel Inventory, 2007

The 2007 Chicago Regional Household Travel Inventory (CRHTI) is a comprehensive study of the demographic and travel behavior characteristics of residents in the greater Chicago area. This survey entailed the collection of activity and travel information for all household members regardless of age during a randomly assigned 24-hour or 48-hour period. The survey relied on the willingness of regional households to (1) provide demographic information about the household, its members and its vehicles and (2) have all household members record all travel and activity for the travel period, including address information for all locations visited, trip purpose, mode, and travel times. Demographic variables include gender, age, employment status, household size, whether household members were students on their given travel day, household income, and whether respondents had a valid drivers license at the time of the survey.