European Bike Sharing Programs Don't Stress Helmets

The Europeans concluded requiring helmets provides few benefits but discourages many from riding bikes at all

One spectacular Sunday in Paris last month, I decided to skip museums and shopping to partake of something even more captivating for an environment reporter: Vélib, arguably the most successful bike-sharing program in the world. In their short lives, Europe's bike-sharing systems have delivered myriad benefits, notably reducing traffic and its carbon emissions. A number of American cities — including New York, where a bike-sharing program is to open next year — want to replicate that success.