Do Bikeshare Users Wear Helmets?

Bicycle sharing has exploded in popularity across the United States. Importantly, bikeshare users are likely to wear bicycle helmets while ride.

November 9, 2015, 5:00 AM PST

By Jennifer Evans… @EvansCowley

Barcelona Bikeshare

Cornfield / Shutterstock

Bicycle sharing has become increasingly popular across the world. More cities are adopting bikeshare schemes, but one of the challenges has been how to encourage people using a bikeshare to also use a helmet to minimize head injury in the event of an accident. 

Capital Bike Share Riders

This image is typical of what can been seen in cities across North America, these Capital bikeshare users in Washington, D.C. are not wearing a helmet. Let's face it: as a tourist in a city deciding to explore the city by bikeshare, there is no way you packed a helmet in your luggage. And if you decide to go for a ride at lunch on a nice day with a bikeshare bike, you likely don't have a helmet sitting in your office. As a commuter who regularly uses bikeshare you are more likely to think about using a helmet. But how often do bikeshare users wear a helmet? 

My intern Patrick Holland and I have been monitoring helmet usage on the Ohio State University campus, and I was curious to see how our experience compares to other places. I took a look at research undertaken across North America and Europe to see what data has been collected on helmet use. The following table summarizes the portion of bikeshare users wearing helmets and compares this to the helmet use among people using private bicycles. 


% bikeshare users wearing a helmet

% of personal bicycle users wearing a helmet

Helmet Options on BikeShare Website

New York City

  Study 1

  Study 2



Not observed

Not observed

Free and discount helmet options

Washington DC

  Study 1

  Study 2




Not observed

Promotes helmet use


  Study 1

  Study 2



Not observed


Promotes helmet use




Promotes helmet use




Promotes helmet use

Columbus, Ohio*



Free and discount helmet options

*Preliminary Results based on observations at Ohio State University

While helmet usage rates are low, there are differences in who wears helmets. Females more frequently wear helmets than males across the cities observed. And older riders wear a bicycle helmet more frequently than young riders.

Citbike rider

Cities have taken a variety of approaches from mandatory helmet laws, helmet rentals, free helmets, and helmet discounts. Seattle has a mandatory helmet law for riders of all ages. People caught not wearing a helmet can be fined $81. Seattle is offering free rental of helmets with the launch of its Pronto Cycle Share program this fall. I didn't find any studies looking at whether helmet usage in a mandatory helmet city result in higher rates of helmet use. I did find one study that compared cycling related hospitalizations in Canadian jurisdictions that do and do not have helmet laws. Researchers found that helmet legislation was not associated with hospitalization rates. Their conclusions are that policy makers should concentrate on bicycling infrastructure rather than helmet enforcement laws. 

While the bikeshare and the city may not require or directly encourage bicycle helmet usage, community members are working to encourage helmet usage. For example, in Montreal a local business offers free helmet rentals. Washington DC ran a pilot program providing helmets in hotels for visitors. Even thought there are efforts to promote helmet usage, the portion of bikeshare users wearing helmets is quite modest. 

In Europe, helmet usage is low because traffic speeds are low and bicycle infrastructure is much more prevalent. Is it that bicycle share users feel safer, ride in places with better bicycle infrastructure or something else? Or are bikeshare users willing to take greater risk simply because they do not have easy access to a helmet at the time they wish to ride? I also wonder whether weather is a factor. I've noticed in my own community that helmet usage is greater in winter months compared to summer months. Perhaps because a helmet aids in keeping your head warm in the winter and contributes to sweat and messy hair in the summer. Is vanity a contributing factor? In a survey my intern Patrick Holland undertook at the Ohio State University, respondents indicated that they do not wear a helmet because of the short distance of their planned ride, the slow rate of speed they are going, and the infrequency of riding a bicycle. The number one reason people cited for wearing a helmet is to minimize risk of a head injury.

Okay, but does it matter that people aren't using helmets. Are there more accidents, more head injuries? After all that is the purpose of wearing a helmet. In a study examining bicycle related injuries in five cities with bicycle shares and five cities without bikeshare. In cities with bicycle sharing, the proportion of head injuries among bicyclists increased 8 percentage points, rising to 50 percent of bicycle related injuries. It is important to note though that the total number of head injuries declined by 14.4 percent in bicycle share cities and the total number of non-head injuries declined by 38 percent in bikeshare cities. The findings indicate that while bikeshare programs encouraged more bicycling, the total number of injuries declined but the portion involving head injury increased. Why the decline in injury rates as a whole? Perhaps, along with bikeshare, improvements in bicycling infrastructure are creating safer cycling conditions. 

How does the bikeshare in your community encourage helmet usage? What is your city doing to promote a safe cycling environment? Is there anything that can be done to encourage greater helmet use? 

Jennifer Evans…

Jennifer Evans-Cowley, PhD, FAICP, is the Provost and Vice President for Academic Affairs at th eUniversity of North Texas. Dr. Evans-Cowley regularly teaches courses to prepare candidates to take the AICP exam.

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