Number of U.S. bicyclists is increasing , according to government study . More than $ 700 million in stimulus funds is being used for bike and pedestrian projects . Comment: Cities should choose wisely where to add lanes , paths , expert says .
Number of U.S. bicyclists is increasing , according to government study . More than $ 700 million in stimulus funds is being used for bike and pedestrian projects . Critics question project in North Carolina that would add bike lanes to busy street . Cities should choose wisely where to add lanes , paths , expert says .