This study investigates the relationship among the volume of bicycle commuters and the occurrence of traffic fatalities, per capita, in 30 U.S. cities. The analysis controls for automobile commuters, those who work from home, average annual rainfall, average temperature, and hours lost to traffic congestion. Through multivariate regression techniques, it is found that, per 150,000 workers aged 16 and older, there is a reduction of 4.0365 traffic fatalities for every one percentage point increase in bicycle commuters across these 30 U.S. cities. This output is statistically significant at the 0.05 confidence level.
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