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Midlands Tomorrow Household Travel Survey, 2006-2007 [Columbia, South Carolina] (ICPSR 34680)
Principal Investigator(s): Bricka, Stacey, NuStats
The purpose of the Midlands Tomorrow Household Travel Survey was to obtain demographic characteristics and associated travel behavior data from residents of the Columbia, South Carolina region in order to support an update to the regional transportation model. In addition, the data will be used to inform other studies relating to regional travel. Data was collected using a blend of travel survey methods, and aided by computer-aided telephone interviewing (CATI) technology. Specifically, the project utilized a one-call approach, where the household was recruited and travel details obtained for "yesterday." The survey relied on the willingness of regional households to (1) provide demographic information about the household, its members and its vehicles and (2) report all locations visited by all household members for a specific 24-hour weekday period, including trip purpose, mode, and travel times. No incentives were offered in the conduct of this study; rather, it relied on the goodwill of regional residents to participate in the study. Survey work began with design in the fall of 2006, followed by the first recruitment mailing in November 2006. Given the low response to the mailout effort, the project shifted to a telephone-based design which was used from mid-February through the end of the study in early June 2007. The majority of surveys were obtained March through May of 2007. In total, 1,000 households participated in the study. The overall response rate was 16 percent, using survey research standards that take into account the sample that was dialed but for which eligibility was not confirmed. The ratio of completed households to all eligible households contacted (which is a more direct measurement of participation rates) was 59 percent.
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Bricka, Stacey. Midlands Tomorrow Household Travel Survey, 2006-2007 [Columbia, South Carolina]. ICPSR34680-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2013-06-18. http://doi.org/10.3886/ICPSR34680.v1
Persistent URL: http://doi.org/10.3886/ICPSR34680.v1
Scope of Study
Subject Terms: automobile use, automobiles, driving habits, households, transportation, travel, vehicles
Smallest Geographic Unit: Census tract
Geographic Coverage: Columbia (South Carolina), South Carolina, United States
Date of Collection:
Unit of Observation: individual, household
Universe: Households within Columbia, SC. This included portions of Calhoun, Kershaw, Lexington and Richland Counties.
Data Types: survey data
Data Collection Notes:
For additional information, please refer to the Metropolitan Travel Survey Archive Web site.
Study Design: The study design considerations were guided by the desire to maximize the number of completed surveys subject to budget constraints, with the minimum desired sample size being 1,000 households. For additional information, please refer to the Original P.I. Documentation section of the ICPSR codebook.
Sample: The objective was to provide a dataset representative of the region's population and travel patterns. As such, the sample design for the study needed to guide the collection of data such that the resultant dataset would include adequate representation of households by geography. The general approach was a random sample of all residential addresses within the region. The addresses were matched against telephone listings to obtain telephone numbers for use in the survey effort. The study area was comprised of portions of Calhoun, Kershaw, Lexington and Richland Counties (as shown in Figure M-1). Census 2000 data identifies just under 204,000 households in the region, less than 1 percent of which were linguistically isolated. Thus the survey was conducted in English only. For additional information, please refer to the Original P.I. Documentation section of the ICPSR codebook.
Time Method: Cross-sectional
Weight: For information regarding weights, please refer to the Original P.I. Documentation section of the ICPSR codebook.
Mode of Data Collection: computer-assisted telephone interview (CATI), mail questionnaire
Response Rates: The response rate for this survey was 16 percent.
Extent of Processing: 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.
Restrictions: Variables were removed to prevent disclosure and preserve respondent anonymity.
Original ICPSR Release: 2013-06-18
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