Typically, a cyclist should not operate his bicycle within a crosswalk as he has the same responsibilities as any other vehicle on the road.  However, if a cyclist attempts to cross in a crosswalk on foot or if the crosswalk is a shared use path, VA Code 46.2-924 states that drivers must yield right of way to a biker crossing a road in any clearly marked crosswalk or any intersection with a speed limit below 35 miles per hour.