Anthony Rowe, an associate professor at Carnegie Mellon University in Pittsburgh, wants bikes to feed information to nearby cars to avoid collisions. His bike is fitted with an array of precise instruments and a battery hidden in the water bottle.
Margaret J. Krauss/WESA
British Transport Secretary Chris Grayling, seen here after a Cabinet meeting at 10 Downing Street, is seen opening his car door on a passing cyclist in a video that was captured by a bike rider in London.
Justin Tallis/AFP/Getty Images
Peloton's New York City cycling studio has a television production facility so that subscribers, using bikes equipped with a waterproof tablet, can ride along at home.
Issac James/Courtesy of Peloton Cycle
A diagram released by the city of Paris shows how cyclists will be able to pass through intersections during red lights. In some cases, they can turn right; in others, they can go straight through.
City of Paris
A cyclist rides through a congested intersection in Portland, Oregon; the state is No. 6 on the League of American Bicyclists' new rankings of U.S. states.
Randy L. Rasmussen/The Oregonian /Landov
Cyclists can now call AAA and other groups for help when they run into trouble during a ride. Here, cyclists ride near the White House in Washington, D.C., last autumn.
Mladen Antonov/AFP/Getty Images
A Wyoming man has won a Supreme Court case fighting efforts to route the Medicine Bow Rail Trail through his family's property. On this map, the trail is the unmarked route moving from the lower right toward Fox Park, where Marvin Brandt lives.
No more helmet hair: Hovding's "invisible" helmet is an air bag tucked away in a collar that gets fastened around a cyclist's neck. It's aimed at urban cyclists and priced at $535.
Courtesy of Hovding