Filed under: Uncategorized | Tags: bicycle helmet laws, bicycle injuries, bicycle safety, bicycling injuries, Bike accidents, bike helmets, child cyclists, children and cycling, cycling, cycling injuries, helmet laws, helmets, mandatory helmet laws, transportation, urban cycling
Pinka Chatterji and Sara Markowitz, “Effects of Bicycle Helmet Laws on Children’s Injuries.” NBER Working Paper No. 18773. February 2013. JEL No. I0,K0
Cycling is popular among children, but results in thousands of injuries annually. In recent years, many states and localities have enacted bicycle helmet laws. We examine direct and indirect effects of these laws on injuries. Using hospital-level panel data and triple difference models, we find helmet laws are associated with reductions in bicycle-related head injuries among children. However, laws also are associated with decreases in non-head cycling injuries, as well as increases in head injuries from other wheeled sports. Thus, the observed reduction in bicycle-related head injuries may be due to reductions in bicycle riding induced by the laws.
State University of New York at Albany Economics Department
Department of Economics Emory University
The auto industry loves mandatory helmet laws.
Filed under: Uncategorized | Tags: Arizona, bicycle, bicycling, bicycling by children, bicycling safety, Bike accidents, child cyclists, curb-cut jungle, industrialized cyclist, kids on bikes, Mesa, pdf, police reports, Safe Routes to School, suburban areas, suburban cycling, suburbia, traffic accidents, transportation, urban cycling
Especially in suburban areas. Here’s Mesa, AZ 2005.
Filed under: Uncategorized | Tags: bicycle infrastructure, Bike accidents, Canada, cycle tracks, cycling, risk, Teschke, toronto, traffic accidents, transportation, urban cycling
Objectives. We compared cycling injury risks of 14 route types and other route infrastructure features.
Methods. We recruited 690 city residents injured while cycling in Toronto or Vancouver, Canada. A case-crossover design compared route infrastructure at each injury site to that of a randomly selected control site from the same trip.
Results. Of 14 route types, cycle tracks had the lowest risk (adjusted odds ratio [OR] = 0.11; 95% confidence interval [CI] = 0.02, 0.54), about one ninth the risk of the reference: major streets with parked cars and no bike infrastructure. Risks on major streets were lower without parked cars (adjusted OR = 0.63; 95% CI = 0.41, 0.96) and with bike lanes (adjusted OR = 0.54; 95% CI = 0.29, 1.01). Local streets also had lower risks (adjusted OR = 0.51; 95% CI = 0.31, 0.84). Other infrastructure characteristics were associated with increased risks: streetcar or train tracks (adjusted OR = 3.0; 95% CI = 1.8, 5.1), downhill grades (adjusted OR = 2.3; 95% CI = 1.7, 3.1), and construction (adjusted OR = 1.9; 95% CI = 1.3, 2.9).
Conclusions. The lower risks on quiet streets and with bike-specific infrastructure along busy streets support the route-design approach used in many northern European countries. Transportation infrastructure with lower bicycling injury risks merits public health support to reduce injuries and promote cycling. (Am J Public Health. Published online ahead of print October 18, 2012: e1-e8. doi:10.2105/AJPH.2012.300762)