The second Miami Valley Cycling Summit takes place Friday. This focus of this year's event is the economic impact of cycling in a community. According to the Miami Valley Regional Planning Commission, the bike trails in the region attract 1 million visitors, and those people spend 16 million dollars on goods and services related to their use of the trails every year. Andy Williamson is organizing the event, and he says communities also see a ripple effect when they include cycling in their economic plan.