Combined High-Visibility Enforcement: Determining the Effectiveness (2024) / Chapter Skim
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Pages 8-21
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From page 8... ...
8 C H A P T E R 2 This section describes how agencies select behaviors to include in high-visibility enforcement (HVE) campaigns, a summary of the literature review on the effectiveness of HVE campaigns, and the methodologies used to evaluate HVE campaigns.
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Description of HVE Campaigns and Effectiveness 9 initiative between 2002 and 2005 (Zwicker et al. 2007; Syner et al.
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10 Combined High-Visibility Enforcement: Determining the Effectiveness where the campaign was conducted responded that they had seen a checkpoint. In the survey conducted after the campaigns, between 10% and 21% of drivers indicated that they had seen a sobriety checkpoint, which in most cases represented a slight increase.
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Description of HVE Campaigns and Effectiveness 11 The Anoka County, Minnesota, DWI task force, Operation NightCAP, aimed to reduce impaired driving and was conducted from 2007 to 2009. The campaign involved saturation patrols, which included the use of CMS to notify drivers that they were entering an enforcement area.
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12 Combined High-Visibility Enforcement: Determining the Effectiveness tracked the percentage of impaired driving fatalities as a function of all fatalities. Only simple methods were used for comparison, which showed a reduction from a high of 53% to 40% in the last year of the campaign.
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Description of HVE Campaigns and Effectiveness 13 Multiple jurisdictions were included in the campaign, which also included paid and earned media outreach efforts about 2 weeks before and after the waves. The campaign included observing drivers using spotters (positioned in a vehicle or on foot)
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14 Combined High-Visibility Enforcement: Determining the Effectiveness also included a comparison area, which did not see any statistically significant changes in seat belt use. The Virginia DMV conducted surveys about the campaign at driver's licensing stations.
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Description of HVE Campaigns and Effectiveness 15 2.2.3 Yielding Behavior Yielding behavior has been used in HVE campaigns primarily to encourage drivers to yield to pedestrians. One study conducted a follow-up evaluation of a prior HVE campaign in Gainesville, Florida.
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16 Combined High-Visibility Enforcement: Determining the Effectiveness The surveys in Sacramento (5,283) and its associated control locations were conducted at gas stations.
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Description of HVE Campaigns and Effectiveness 17 study was used to evaluate cell phone use, and a chi-squared test was used to determine statistical significance. The number of drivers using cellphones decreased from 6.8% before the campaign to 2.9% after the fourth wave, and the decrease was statistically significant in Hartford.
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18 Combined High-Visibility Enforcement: Determining the Effectiveness and by 2.5% for the control corridors. The percentage of drivers who indicated that they leave more room when passing trucks increased by 8% for the intervention corridors, with no change for the control corridors.
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Description of HVE Campaigns and Effectiveness 19 2.2.6.1 Oklahoma and Tennessee A combined HVE campaign titled "More Cops More Stops" was conducted in six waves over a 2-year period in five locations in Oklahoma and Tennessee (Nichols et al.
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20 Combined High-Visibility Enforcement: Determining the Effectiveness decrease in pedestrian crashes. The cell phone-focused HVE campaigns also showed increased awareness of the campaign message and decreased cell phone use.
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Description of HVE Campaigns and Effectiveness 21 Seat belt use Seat belt use 3 waves in 2010 Various metrics about campaign; driver surveys at DMV; observational study of seat belt use Naïve beforeand-after evaluation Increase in seat belt use; increase in drivers who heard about campaign Elliot et al. 2014 Impaired driving, seat belt use, and speeding Seat belt use 2 years Various metrics; driver surveys at DMV; observational study of seat belt use Logistic regression to evaluate interaction effects between seat belt use, Increase in seat belt use; increase in drivers who heard about campaign Nichols et al.
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