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Combining web and face-to-face in travel surveys: comparability challenges?

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  • Caroline Bayart

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  • Patrick Bonnel

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    Abstract

    Response rates for household travel surveys are tending to fall, and it seems unlikely that this trend will be reversed in the future. In recent years, travel data collection methods have evolved in order to obtain reliable data that are sufficiently detailed to feed increasingly complex models, and in order to integrate new technologies into survey protocols (Internet, GPS…). Combining different media is an obvious low-cost way of improving data quality as it increases the overall response rate. But the question of the comparability of data over time and between different survey modes remains unresolved. This paper makes a comparative analysis between the travel behaviours of web-based survey respondents and respondents to a face-to-face interview. The data were obtained from the 2006 Lyon conurbation household travel survey. Our analysis shows that the Internet respondents reported fewer trips per day than the face-to-face respondents (3.00 vs. 4.04 daily trips), and that the differences between the two groups varied according to the travel mode and trip purpose. While part of this difference can be explained by socioeconomic disparities (the Internet respondents had a specific profile) we cannot exclude the possibility of under-reporting due to the web medium. Copyright Springer Science+Business Media, LLC. 2012

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    File URL: http://hdl.handle.net/10.1007/s11116-012-9393-x
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    Bibliographic Info

    Article provided by Springer in its journal Transportation.

    Volume (Year): 39 (2012)
    Issue (Month): 6 (November)
    Pages: 1147-1171

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    Handle: RePEc:kap:transp:v:39:y:2012:i:6:p:1147-1171

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    Web page: http://www.springerlink.com/link.asp?id=103007

    Related research

    Keywords: Household travel surveys; Daily travel behaviour; Survey modes; Data comparability;

    References

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    1. Dick Ettema & Tim Schwanen & Harry Timmermans, 2007. "The effect of location, mobility and socio-demographic factors on task and time allocation of households," Transportation, Springer, vol. 34(1), pages 89-105, January.
    2. Jean-Loup Madre & Kay Axhausen & Werner Brög, 2007. "Immobility in travel diary surveys," Transportation, Springer, vol. 34(1), pages 107-128, January.
    3. Mullahy, John, 1986. "Specification and testing of some modified count data models," Journal of Econometrics, Elsevier, vol. 33(3), pages 341-365, December.
    4. Abolfazl (Kouros) Mohammadian & Shlomo Bekhor, 2008. "Travel behavior of special population groups," Transportation, Springer, vol. 35(5), pages 579-583, August.
    5. Peter Stopher & Camden FitzGerald & Min Xu, 2007. "Assessing the accuracy of the Sydney Household Travel Survey with GPS," Transportation, Springer, vol. 34(6), pages 723-741, November.
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