Number of U.S. bicyclists is growing , according to government study . More than $ 700 million in stimulus funds is being used for bike and pedestrian projects . Critics oppose projects in North Carolina that would add bike lanes to busy street . One caller to the program was a long-haul truck driver who accused many bicycle riders of failing to respect the law and not riding with the flow of traffic . Cities should choose wisely where to add lanes , paths , expert says .
Number of U.S. bicyclists is growing , according to government study . More than $ 700 million in stimulus funds is being used for bike and pedestrian projects . Critics oppose projects in North Carolina that would add bike lanes to busy street . Cities should choose wisely where to add lanes , paths , expert says .