Chicago Regional Household Travel Inventory, 2007 (ICPSR 34910)

Version Date: Aug 4, 2014

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Principal Investigator(s):
Stacey Bricka, NuStats

Series:

https://doi.org/10.3886/ICPSR34910.v1

Version V1

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Summary

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.

Citation

Bricka, Stacey. Chicago Regional Household Travel Inventory, 2007. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2014-08-04. https://doi.org/10.3886/ICPSR34910.v1

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Subject Terms

Geographic Coverage

Smallest Geographic Unit

Census tract

Distributor(s)

Inter-university Consortium for Political and Social Research
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Time Period(s)

2007-01 -- 2008-03

Date of Collection

2007-01 -- 2008-03

Data Collection Notes

  1. The documentation refers to 6 data sets (household, person, vehicle, place, transit, and location) that are intended to be linked using specific reference numbers, however the deposited data contained only one data file. It is unclear how this deposited file relates to the referenced data sets. No additional information has been provided.

  2. For additional information regarding the 2007 Chicago Regional Household Travel Inventory please refer to the Metropolitan Travel Survey Archive Web site.

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Study Purpose

The purpose of the CRHTI is to document the demographic and regional travel behavior characteristics of the region, from which inferences can be drawn to inform the regional travel demand modeling process.

Study Design

The survey population was defined as all households residing in the CMAP modeling area, currently defined by eight Illinois counties: Cook, DuPage, Grundy, Kane, Kendall, Lake, McHenry, and Will, and the NIRPC modeling area (Lake, LaPorte, and Porter counties in Indiana). The population or the study universe is thus comprised of over 3.2 million households, distributed across the counties. For additional information regarding study design, please refer to the Survey Methods Report in the User Guide.

Sample

A dual frame sampling approach, combining Random Digit Dialing (RDD) with the Directory/Address-based samples, was employed in this study. For additional information regarding sampling, please refer to the Survey Methods Report in the User Guide.

Time Method

Cross-sectional

Universe

Households residing in the Illinois counties of Cook, DuPage, Grundy, Kane, Kendall, Lake, McHenry, and Will and in the Indiana counties of Lake, LaPorte, and Porter.

Unit(s) of Observation

individual, household

Data Type(s)

Mode of Data Collection

Response Rates

The overall response rate, calculated according to standards established by the Council of American Survey Research Organizations, was 10 percent (this included a 19 percent recruitment rate and a 55 percent retrieval rate).

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Original Release Date

2014-08-04

Version History

2018-02-15 The citation of this study may have changed due to the new version control system that has been implemented. The previous citation was:
  • Bricka, Stacey. Chicago Regional Household Travel Inventory, 2007. ICPSR34910-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2014-08-04. http://doi.org/10.3886/ICPSR34910.v1

2014-08-04 ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:

  • Checked for undocumented or out-of-range codes.
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Weight

The data are not weighted. However, this collection contains 2 weight variables users may wish to use in analysis: WTFIN (Final Household Weight), EXPFIN (Final Household Weight Expanded). For additional weighting information, please refer to the Weighting section of the User Guide.

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Notes