MATURE DRIVER IMPROVEMENT PROGRAM IN CALIFORNIA
California's Mature Driver Improvement (MDI) Program offers insurance-premium reductions to older drivers completing an accredited driver-improvement course. Driving records of five cohorts (1988-1992) of course graduates and comparison drivers were analyzed. MDI subjects were volunteers; comparison subjects were sampled randomly from the automated driver file. Unadjusted 6-, 18-, and 30-month subsequent total crash rates of MDI and comparison drivers did not differ significantly between groups (p < .10, two-tailed) for any cohort or record length. Unadjusted fatal and injury crash rates showed significant differences in favor of the MDI group in the first two cohorts and a significant difference in favor of the comparison group in a later cohort. The unadjusted accident rates indicate no justification for offering insurance discounts to those completing the course after 1989. All between-group differences on unadjusted citation rates were significant, favoring the MDI group. Analyses of covariance showed, in two cohorts, significant differences favoring the comparison group on adjusted total crashes. In two cohorts there were significant differences on adjusted fatal and injury crashes, one favoring the MDI and one the comparison group. On citations all adjusted differences were significant, favoring the MDI group. Analyses to two cohorts' 6-month data using generalized two-stage least-squares regression indicated that program completion was associated with more total and fatal and injury crashes and fewer citations.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/0309055199
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Supplemental Notes:
- This paper appears in Transportation Research Record No. 1438, Research Issues on Bicycling, Pedestrians, and Older Drivers. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Janke, Mary K
- Publication Date: 1994
Language
- English
Media Info
- Features: References; Tables;
- Pagination: p. 77-83
- Monograph Title: RESEARCH ISSUES ON BICYCLING, PEDESTRIANS, AND OLDER DRIVERS
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Serial:
- Transportation Research Record
- Issue Number: 1438
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Adults; Aged drivers; Crash rates; Data analysis; Driver improvement programs; Fatalities; Injuries; Insurance rates; Least squares method; Mathematical analysis; Regression analysis
- Geographic Terms: California
- Old TRIS Terms: Mature driver improvement programs
- Subject Areas: Data and Information Technology; Highways; Safety and Human Factors; I83: Accidents and the Human Factor;
Filing Info
- Accession Number: 00668961
- Record Type: Publication
- ISBN: 0309055199
- Report/Paper Numbers: HS-042 015
- Files: HSL, TRIS, TRB
- Created Date: Nov 9 1994 12:00AM