GPS-based household interview survey for the Cincinnati, Ohio Region : executive summary report.
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2012-02-29
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Alternative Title:Global Position System-based household interview survey for the Cincinnati, Ohio Region
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Edition:Executive summary report.
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Abstract:PROJECT BACKGROUND: Household travel surveys (HTS) are designed to provide information about daily travel patterns, including
trip purposes, time of day decisions, mode choices, trip lengths and distances, activity locations, and
routes taken. This information is typically gathered from self-reported information in a diary, with the
information retrieved via a computer-assisted telephone interview (CATI), a web-based survey, or
mailback of the completed diary. Unfortunately, it has been demonstrated that self-reporting leads to
inaccuracies in travel information. The biggest short-coming is trip underreporting. For instance, recent
work by Wolf et al., (2003), Pearson (2004) and others has shown that diary information retrieved through
CATI when compared with GPS measured travel suggests trip under-reporting ranges from 20 to 30
percent. The diary approach has also shown time inaccuracies and origin-destination location errors;
respondent fatigue often results in self-reporting human errors.
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