As planning and building of the  light-rail line that will link Minneapolis and Saint Paul along University Avenue goes forward, a whole range of issues are arising that call upon vision, ingenuity, and a sense of fairness for solutions. How can the construction proceed with minimal disruption to the many businesses along the route? How can stations spur further development, and of what type and density should it be? How will light rail alter the demographics and dynamics of the communities through which it passes? Answering these questions is an entrepreneurial, urbanistic, design, and political challenge that will keep the Cities busy for years to come.