reference : Effects of snowfalls on motor vehicle collisions, injuries, and fatalities

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Bibliographic fields
reftype Journal Article
Abstract Objectives. We estimated the effects of snowfalls on US traffic crash rates between 1975 and 2000. Methods. We linked all recorded fatal crashes (1.4 million) for the 48 contiguous states from 1975 through 2000 to daily state weather data. For a subsample including 17 states during the 1990s, we also linked all recorded property-damage-only crashes (22.9 million) and nonfatal-injury crashes (13.5 million) to daily weather data. Employing negative binomial regressions, we investigated the effects of snowfall on crash counts. Fixed effects and other controls were included to address potential confounders. Results. Snow days had fewer fatal crashes than dry days (incidence rate ratio [IRR] = 0.93; 95% confidence interval [CI] = 0.90, 0.97), but more nonfatal-injury crashes (IRR = 1.23; 95% CI = 1.18, 1.29) and property-damage-only crashes (IRR=1.45; 95% CI=1.38, 1.52). The first snowy day of the year was substantially more dangerous than other snow days in terms of fatalities (IRR = 1.14; 95% CI=1.08, 1.21), particularly for elderly drivers (IRR=1.34; 95% CI=1.23, 1.50). Conclusions. The toll of snow-related crashes is substantial. Our results may help estimate the potential benefits of safety innovations currently proposed by meteorology and traffic safety experts.
Author Eisenberg, Daniel; Warner, Kenneth E.
DOI 10.2105/AJPH.2004.048926
Date 08/08/accepted
ISSN 1541-0048
Issue 1
Journal American Journal of Public Health
Notes 0950120[PII] 15623871[pmid] Am J Public Health
Pages 120-124
Title Effects of snowfalls on motor vehicle collisions, injuries, and fatalities
Volume 95
Year 2005
Bibliographic identifiers
.publisher American Journal of Public Health
.reference_type 0
_record_number 19003
_uuid b2ecd523-a160-4c51-8a7f-48249a3e707c