IDEAS home Printed from https://ideas.repec.org/p/cdl/itsrrp/qt24g9739p.html
   My bibliography  Save this paper

California Traffic Safety Survey 2018: Data Analysis and Comparison with 2010-2017 Survey Data Results

Author

Listed:
  • Ewald, Katrin
  • Wasserman, Lisa

Abstract

The 2018 California Traffic Safety Study is the ninth wave of a statewide representative survey of California vehicle drivers on traffic safety perceptions, distracted driving and level of awareness of traffic safety media outreach campaigns. The following data analyses is based on 1,395 survey responses collected in August and September of 2018. The analyzed data only includes the valid answers for survey items, while excluding all reported “Don’t know” responses as well as response refusals. For this reason, the valid percentage of responses differs for each question due to the number of valid answers given to a particular question. The total answer per survey question is reflected in the total number of completed surveys, which are listed in each table. In addition, some questions are skipped based on selected answer and the sample sizes for each survey item vary accordingly. Due to rounding to one decimal point, some percentages presented do not always add up to the exact value of 100.0%. All comparisons to previous years’ data refer to the comparable longitudinal field surveys conducted with California vehicle drivers since 2010. The scope and overall sample size of the 2018 survey was comparable to the sample size of the 2017 data collection. In total, 1,395 vehicle drivers were intercepted for the study, resulting in an overall confidence interval of +/- 2.63, at a confidence level of 95%.

Suggested Citation

  • Ewald, Katrin & Wasserman, Lisa, 2018. "California Traffic Safety Survey 2018: Data Analysis and Comparison with 2010-2017 Survey Data Results," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt24g9739p, Institute of Transportation Studies, UC Berkeley.
    • Handle: RePEc:cdl:itsrrp:qt24g9739p
    as

    Download full text from publisher

    File URL: https://www.escholarship.org/uc/item/24g9739p.pdf;origin=repeccitec
    Download Restriction: no
    ---><---

    More about this item

    Keywords

    Social and Behavioral Sciences;

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:cdl:itsrrp:qt24g9739p. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Lisa Schiff (email available below). General contact details of provider: https://edirc.repec.org/data/itucbus.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.