Epidemiology and spatial examination of bicycle-motor vehicle crashes in Iowa, 2001-2011

Cara J. Hamann, Corinne Peek-Asa, Charles F. Lynch, Marizen Ramirez, Paul Hanley

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Purpose: To identify how person, crash, environment, and population characteristics differ between bicycle-motor vehicle crashes that occur at intersections and non-intersections. Methods: The Iowa Department of Transportation crash database for the years 2001 through 2011 was used to identify bicycle-motor vehicle (BMV) crashes and associated person, crash, and environment characteristics. Population-level data were drawn from the 2010 U.S. Census and the 2010 American Community Survey. Descriptive statistics, GIS mapping, and multivariable logistic regression were used to examine factors associated with crash risk and crash location. Results: Compared to intersections, non-intersection BMV crashes had higher odds of involving young bicyclists (<10 years old; OR: 1.8, 95%CI: 1.2-2.6), location outside city limits (OR: 5.7, 95%CI: 3.9-8.3), with driver vision obscured (OR: 1.5, 95% CI: 1.2-1.8), reduced lighting on roadway (OR: 1.9, 95% CI: 1.5-2.4), and lower odds when the bicyclist (OR: 0.4, 95% CI: 0.3-0.6) or motorist (OR: 0.6, 95% CI: 0.4-0.8) failed to yield right of way. Conclusions: Environmental factors, as well as developmental (age) and behavioral factors of bicycle-motor vehicle crashes vary by location (intersection/non-intersection). Results from this study can be used to tailor and target multiple intervention approaches, such as making infrastructure changes, increasing safety behavior among both motorists and bicyclists, and identifying which age groups and locations would most benefit from intervention.

Original languageEnglish (US)
Pages (from-to)178-188
Number of pages11
JournalJournal of Transport and Health
Volume2
Issue number2
DOIs
StatePublished - 2015

Bibliographical note

Funding Information:
We would like to thank Tracy Young for her assistance with data acquisition and management. This study was funded by the University of Iowa Injury Prevention Research Center (Grant no. R49CCR703640 ), the Iowa Department of Transportation (Contract 92080408-002 ), and a training grant from the Heartland Center for Occupational Health and Safety at the University of Iowa (Training Grant no. T42OH008491 ).

Publisher Copyright:
© 2014 Elsevier Ltd.

Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.

Keywords

  • Bicycling
  • Environment
  • Epidemiology
  • Public health
  • Traffic accidents

Fingerprint Dive into the research topics of 'Epidemiology and spatial examination of bicycle-motor vehicle crashes in Iowa, 2001-2011'. Together they form a unique fingerprint.

Cite this