Many U.S. cities have improved marginalized neighborhoods by investing in grocery stores, schools, health clinics, community centers, libraries and affordable housing. But when it comes to bicycle infrastructure, they often add only the easiest and least safe elements, such as painting sharrows – stencils of bikes and double chevrons – or bike lane markings, and placing them next to curbs or between parked cars and traffic. Cycle tracks – bike lanes separated from traffic by curbs, lines of posts or rows of parked cars – are more common in affluent neighborhoods.

Compared with white wealthier neighborhoods, more bicyclists in ethnic-minority neighborhoods receive tickets for unlawful riding or are involved in collisions. With access to properly marked cycle tracks, they would have less reason to ride on the sidewalk or against traffic on the street, and would be less likely to be hit by cars.