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Nighttime observations of safety belt use: An evaluation of California's primary law


  • Lange, J.E.
  • Voas, R.B.


Objectives. An analysis was conducted to determine what effect California's change to a primary safety belt law had on safety belt use among nighttime weekend drivers. Methods. Observations of 18 469 drivers in 2 California communities were made during voluntary roadside surveys conducted every other Friday and Saturday night from 9 PM to 2 AM for 4 years. Results. Rates of safety belt use rose from 73.0% to 95.6% (P

Suggested Citation

  • Lange, J.E. & Voas, R.B., 1998. "Nighttime observations of safety belt use: An evaluation of California's primary law," American Journal of Public Health, American Public Health Association, vol. 88(11), pages 1718-1720.
  • Handle: RePEc:aph:ajpbhl:1998:88:11:1718-1720_6

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    Cited by:

    1. Teik Hua Law & Robert B. Noland & Andrew W. Evans, 2013. "Factors Associated with the Enactment of Safety Belt and Motorcycle Helmet Laws," Risk Analysis, John Wiley & Sons, vol. 33(7), pages 1367-1378, July.
    2. Adams, Scott & Cotti, Chad & Tefft, Nathan, 2013. "Seatbelt Use Following Stricter Drunk Driving Regulations," Working Paper series 159990, University of Connecticut, Charles J. Zwick Center for Food and Resource Policy.

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