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Alcohol ignition interlock : One-year´s experience in Quebec Dussault, C ; Gendreau, M

By: Dussault, CContributor(s): Gendreau, MPublication details: Alcohol, drugs and traffic safety, 2000; T2000, Stockholm, May 22-26, 2000. Paper, Description: 6 sSubject(s): Sweden | Conference | | Drunken driving | Prevention | | Use | Offender | Before and after study | Accident rate | Recidivist | Efficiency | Canada | 842Bibl.nr: VTI P4030:15Location: Abstract: Since December 1997, an alcohol ignition interlock program has been in place in Quebec. Working on a voluntary basis, the program operates on a user-pay rental scheme with an installation fee of C$150 plus C$87.50 per month. The incentive to participate in the program is a 9-month reduction of the license suspension for a first DWI offence (3-month suspension plus 9 months on interlock instead of 1-year suspension) and, until July 1999, an 18-month reduction for a second DWI offence (6-month suspension plus 18 months on interlock instead of 2-year suspension). During the first year of implementation, 4 160 drivers had obtained a restricted license (must drive with an interlock). On average, these 4 160 drivers stayed 223.4 days on the program between December 1, 1997 and May 31, 1999 (772 restricted licenses obtained before December 1998 were still active on May 31, 1999). A simple before-during-after comparison of traffic convictions, DWI convictions, casualty crashes and property damage only (PDO) crashes per 10 000 days of exposure was performed. Preliminary results indicate a very low DWI re-conviction rate and a large decrease in crashes for both during and after periods. Despite more formal evaluation needed, preliminary results clearly suggest that it is worth continuing the program.
Item type: Reports, conferences, monographs
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Since December 1997, an alcohol ignition interlock program has been in place in Quebec. Working on a voluntary basis, the program operates on a user-pay rental scheme with an installation fee of C$150 plus C$87.50 per month. The incentive to participate in the program is a 9-month reduction of the license suspension for a first DWI offence (3-month suspension plus 9 months on interlock instead of 1-year suspension) and, until July 1999, an 18-month reduction for a second DWI offence (6-month suspension plus 18 months on interlock instead of 2-year suspension). During the first year of implementation, 4 160 drivers had obtained a restricted license (must drive with an interlock). On average, these 4 160 drivers stayed 223.4 days on the program between December 1, 1997 and May 31, 1999 (772 restricted licenses obtained before December 1998 were still active on May 31, 1999). A simple before-during-after comparison of traffic convictions, DWI convictions, casualty crashes and property damage only (PDO) crashes per 10 000 days of exposure was performed. Preliminary results indicate a very low DWI re-conviction rate and a large decrease in crashes for both during and after periods. Despite more formal evaluation needed, preliminary results clearly suggest that it is worth continuing the program.

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