Bicycling has become more popular since Amarillo, Texas, created a hike and bike plan a decade ago that led to designated bicycle and pedestrian routes. Share the Road! president Kenneth Graham said even though bike routes are marked by signs and bike lanes connect residential areas, the city also should use sharrows -- combined images of bicycles and arrows on the pavement -- to help motorcyclists and bicyclists identify streets on bike routes when there are not bike lanes.

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